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20312160600 = 2335233853601
BaseRepresentation
bin10010111010101100…
…101111100101011000
31221102120220200002110
4102322230233211120
5313044403114400
613155320032320
71316232342054
oct227254574530
957376820073
1020312160600
118683759996
123b2a6026a0
131bb9272854
14da9942c64
157dd37ce50
hex4bab2f958

20312160600 has 48 divisors (see below), whose sum is σ = 62967699720. Its totient is φ = 5416576000.

The previous prime is 20312160593. The next prime is 20312160613. The reversal of 20312160600 is 606121302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16926201 + ... + 16927400.

Almost surely, 220312160600 is an apocalyptic number.

20312160600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312160600 is an abundant number, since it is smaller than the sum of its proper divisors (42655539120).

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

20312160600 is a wasteful number, since it uses less digits than its factorization.

20312160600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33853620 (or 33853611 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20312160600 its reverse (606121302), we get a palindrome (20918281902).

The spelling of 20312160600 in words is "twenty billion, three hundred twelve million, one hundred sixty thousand, six hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 200 300 600 33853601 67707202 101560803 135414404 169268005 203121606 270828808 338536010 406243212 507804015 677072020 812486424 846340025 1015608030 1354144040 1692680050 2031216060 2539020075 3385360100 4062432120 5078040150 6770720200 10156080300 20312160600