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157227252 = 223713143981
BaseRepresentation
bin10010101111100…
…01100011110100
3101221211222020120
421113301203310
5310222233002
623333531540
73616260330
oct1127614364
9357758216
10157227252
1180829186
12447a3bb0
132675c6a0
1416c4a7c0
15dc0acbc
hex95f18f4

157227252 has 48 divisors (see below), whose sum is σ = 451527552. Its totient is φ = 41466240.

The previous prime is 157227229. The next prime is 157227253. The reversal of 157227252 is 252722751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157227253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70899 + ... + 73082.

It is an arithmetic number, because the mean of its divisors is an integer number (9406824).

Almost surely, 2157227252 is an apocalyptic number.

157227252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157227252 is an abundant number, since it is smaller than the sum of its proper divisors (294300300).

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

157227252 is a wasteful number, since it uses less digits than its factorization.

157227252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144008 (or 144006 counting only the distinct ones).

The product of its digits is 19600, while the sum is 33.

The square root of 157227252 is about 12539.0291490211. The cubic root of 157227252 is about 539.7292332535.

The spelling of 157227252 in words is "one hundred fifty-seven million, two hundred twenty-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 143981 287962 431943 575924 863886 1007867 1727772 1871753 2015734 3023601 3743506 4031468 5615259 6047202 7487012 11230518 12094404 13102271 22461036 26204542 39306813 52409084 78613626 157227252