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1022330220 = 2235236711057
BaseRepresentation
bin111100111011111…
…000010101101100
32122020200202102020
4330323320111230
54043204031340
6245240030140
734222443402
oct7473702554
92566622366
101022330220
1148509590a
12246462350
13133a58132
1499ac1472
155eb429d0
hex3cef856c

1022330220 has 96 divisors (see below), whose sum is σ = 3031838208. Its totient is φ = 256852992.

The previous prime is 1022330219. The next prime is 1022330227. The reversal of 1022330220 is 220332201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1022330220.

It is not an unprimeable number, because it can be changed into a prime (1022330227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86932 + ... + 97988.

It is an arithmetic number, because the mean of its divisors is an integer number (31581648).

Almost surely, 21022330220 is an apocalyptic number.

1022330220 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 1022330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515919104).

1022330220 is an abundant number, since it is smaller than the sum of its proper divisors (2009507988).

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

1022330220 is a wasteful number, since it uses less digits than its factorization.

1022330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11159 (or 11157 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1022330220 is about 31973.8990428130. The cubic root of 1022330220 is about 1007.3886796244.

Adding to 1022330220 its reverse (220332201), we get a palindrome (1242662421).

The spelling of 1022330220 in words is "one billion, twenty-two million, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 67 69 92 115 134 138 201 230 268 276 335 345 402 460 670 690 804 1005 1340 1380 1541 2010 3082 4020 4623 6164 7705 9246 11057 15410 18492 22114 23115 30820 33171 44228 46230 55285 66342 92460 110570 132684 165855 221140 254311 331710 508622 663420 740819 762933 1017244 1271555 1481638 1525866 2222457 2543110 2963276 3051732 3704095 3814665 4444914 5086220 7408190 7629330 8889828 11112285 14816380 15258660 17038837 22224570 34077674 44449140 51116511 68155348 85194185 102233022 170388370 204466044 255582555 340776740 511165110 1022330220