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1302220000000 = 285765111
BaseRepresentation
bin10010111100110010010…
…111000100101100000000
311121111020221200010201101
4102330302113010230000
5132313421310000000
62434122005544144
7163040140236523
oct22746227045400
94544227603641
101302220000000
114622a5272037
12190466a15054
1395a5000c1ca
1447056350bba
1523d18c92e6a
hex12f325c4b00

1302220000000 has 144 divisors (see below), whose sum is σ = 3249233088192. Its totient is φ = 520880000000.

The previous prime is 1302219999967. The next prime is 1302220000043. The reversal of 1302220000000 is 222031.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19967445 + ... + 20032555.

It is an arithmetic number, because the mean of its divisors is an integer number (22564118668).

Almost surely, 21302220000000 is an apocalyptic number.

1302220000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1302220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624616544096).

1302220000000 is an abundant number, since it is smaller than the sum of its proper divisors (1947013088192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1302220000000 is an frugal number, since it uses more digits than its factorization.

1302220000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65162 (or 65118 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 1302220000000 its reverse (222031), we get a palindrome (1302220222031).

The spelling of 1302220000000 in words is "one trillion, three hundred two billion, two hundred twenty million", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 625 640 800 1000 1250 1280 1600 2000 2500 3125 3200 4000 5000 6250 6400 8000 10000 12500 15625 16000 20000 25000 31250 32000 40000 50000 62500 65111 78125 80000 100000 125000 130222 156250 160000 200000 250000 260444 312500 325555 400000 500000 520888 625000 651110 800000 1000000 1041776 1250000 1302220 1627775 2000000 2083552 2500000 2604440 3255550 4000000 4167104 5000000 5208880 6511100 8138875 8334208 10000000 10417760 13022200 16277750 16668416 20000000 20835520 26044400 32555500 40694375 41671040 52088800 65111000 81388750 83342080 104177600 130222000 162777500 203471875 208355200 260444000 325555000 406943750 416710400 520888000 651110000 813887500 1017359375 1041776000 1302220000 1627775000 2034718750 2083552000 2604440000 3255550000 4069437500 5086796875 5208880000 6511100000 8138875000 10173593750 10417760000 13022200000 16277750000 20347187500 26044400000 32555500000 40694375000 52088800000 65111000000 81388750000 130222000000 162777500000 260444000000 325555000000 651110000000 1302220000000