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157156133 = 2913034159
BaseRepresentation
bin10010101111000…
…00001100100101
3101221201100200112
421113200030211
5310212444013
623332222405
73615543101
oct1127401445
9357640615
10157156133
118078a802
124476aa05
13267361c4
1416c2c901
15dbe4ba8
hex95e0325

157156133 has 8 divisors (see below), whose sum is σ = 162739200. Its totient is φ = 151584048.

The previous prime is 157156127. The next prime is 157156187. The reversal of 157156133 is 331651751.

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 157156133 - 28 = 157155877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157156133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157156333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35708 + ... + 39866.

It is an arithmetic number, because the mean of its divisors is an integer number (20342400).

Almost surely, 2157156133 is an apocalyptic number.

It is an amenable number.

157156133 is a deficient number, since it is larger than the sum of its proper divisors (5583067).

157156133 is a wasteful number, since it uses less digits than its factorization.

157156133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491.

The product of its digits is 9450, while the sum is 32.

The square root of 157156133 is about 12536.1929228933. The cubic root of 157156133 is about 539.6478419512.

The spelling of 157156133 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, one hundred thirty-three".

Divisors: 1 29 1303 4159 37787 120611 5419177 157156133