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20357250216 = 2336863123593
BaseRepresentation
bin10010111101011000…
…101111110010101000
31221112201202110102020
4102331120233302220
5313142424001331
613204010304440
71320320525502
oct227530576250
957481673366
1020357250216
1186a7156436
123b41728120
131bc56cbbb4
14db191cd72
157e22d7c96
hex4bd62fca8

20357250216 has 32 divisors (see below), whose sum is σ = 50900952960. Its totient is φ = 6784706432.

The previous prime is 20357250211. The next prime is 20357250227. The reversal of 20357250216 is 61205275302.

It is not an unprimeable number, because it can be changed into a prime (20357250211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 102916 + ... + 226508.

It is an arithmetic number, because the mean of its divisors is an integer number (1590654780).

Almost surely, 220357250216 is an apocalyptic number.

It is an amenable number.

20357250216 is an abundant number, since it is smaller than the sum of its proper divisors (30543702744).

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

20357250216 is a wasteful number, since it uses less digits than its factorization.

20357250216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130465 (or 130461 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 20357250216 in words is "twenty billion, three hundred fifty-seven million, two hundred fifty thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 24 6863 13726 20589 27452 41178 54904 82356 123593 164712 247186 370779 494372 741558 988744 1483116 2966232 848218759 1696437518 2544656277 3392875036 5089312554 6785750072 10178625108 20357250216