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1202130020 = 2257131076173
BaseRepresentation
bin100011110100111…
…0000110001100100
310002210000112101002
41013221300301210
54430221130040
6315141452432
741534636150
oct10751606144
93083015332
101202130020
11567631093
12296711118
1316208bb50
14b5926060
157080ba15
hex47a70c64

1202130020 has 96 divisors (see below), whose sum is σ = 3136589568. Its totient is φ = 376837632.

The previous prime is 1202130001. The next prime is 1202130067. The reversal of 1202130020 is 200312021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1202129983 and 1202130010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191654 + ... + 197826.

It is an arithmetic number, because the mean of its divisors is an integer number (32672808).

Almost surely, 21202130020 is an apocalyptic number.

1202130020 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 1202130020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568294784).

1202130020 is an abundant number, since it is smaller than the sum of its proper divisors (1934459548).

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

1202130020 is a wasteful number, since it uses less digits than its factorization.

1202130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6309 (or 6307 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1202130020 is about 34671.7467111191. The cubic root of 1202130020 is about 1063.2869430948.

Adding to 1202130020 its reverse (200312021), we get a palindrome (1402442041).

The spelling of 1202130020 in words is "one billion, two hundred two million, one hundred thirty thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 107 130 140 182 214 260 364 428 455 535 749 910 1070 1391 1498 1820 2140 2782 2996 3745 5564 6173 6955 7490 9737 12346 13910 14980 19474 24692 27820 30865 38948 43211 48685 61730 80249 86422 97370 123460 160498 172844 194740 216055 320996 401245 432110 561743 660511 802490 864220 1123486 1321022 1604980 2246972 2642044 2808715 3302555 4623577 5617430 6605110 8586643 9247154 11234860 13210220 17173286 18494308 23117885 34346572 42933215 46235770 60106501 85866430 92471540 120213002 171732860 240426004 300532505 601065010 1202130020