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16157225207 = 131909113567
BaseRepresentation
bin11110000110000101…
…11011000011110111
31112201000200002020102
433003002323003313
5231042222201312
611231133224315
71111251101564
oct170302730367
945630602212
1016157225207
116941372492
12316b03209b
1316a65149b6
14ad3bbb86b
15648700ec2
hex3c30bb0f7

16157225207 has 8 divisors (see below), whose sum is σ = 16283553792. Its totient is φ = 16030942200.

The previous prime is 16157225171. The next prime is 16157225209. The reversal of 16157225207 is 70252275161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16157225207 - 26 = 16157225143 is a prime.

It is a super-2 number, since 2×161572252072 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16157225209) 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, 1184138 + ... + 1197704.

It is an arithmetic number, because the mean of its divisors is an integer number (2035444224).

Almost surely, 216157225207 is an apocalyptic number.

16157225207 is a deficient number, since it is larger than the sum of its proper divisors (126328585).

16157225207 is a wasteful number, since it uses less digits than its factorization.

16157225207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22789.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 16157225207 in words is "sixteen billion, one hundred fifty-seven million, two hundred twenty-five thousand, two hundred seven".

Divisors: 1 131 9091 13567 1190921 1777277 123337597 16157225207