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157135347 = 3273239171
BaseRepresentation
bin10010101110110…
…11000111110011
3101221200022011200
421113123013303
5310211312342
623331542243
73615425355
oct1127330763
9357608150
10157135347
1180776126
124475a983
13267298c5
1416c250d5
15dbdd94c
hex95db1f3

157135347 has 12 divisors (see below), whose sum is σ = 230083464. Its totient is φ = 103321440.

The previous prime is 157135343. The next prime is 157135387. The reversal of 157135347 is 743531751.

It is not a de Polignac number, because 157135347 - 22 = 157135343 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (157135343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118929 + ... + 120242.

It is an arithmetic number, because the mean of its divisors is an integer number (19173622).

Almost surely, 2157135347 is an apocalyptic number.

157135347 is a deficient number, since it is larger than the sum of its proper divisors (72948117).

157135347 is a wasteful number, since it uses less digits than its factorization.

157135347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239250 (or 239247 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 157135347 is about 12535.3638559078. The cubic root of 157135347 is about 539.6240490212.

The spelling of 157135347 in words is "one hundred fifty-seven million, one hundred thirty-five thousand, three hundred forty-seven".

Divisors: 1 3 9 73 219 657 239171 717513 2152539 17459483 52378449 157135347