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157115634 = 23132014303
BaseRepresentation
bin10010101110101…
…10010011110010
3101221122022010120
421113112103302
5310210200014
623331311110
73615314034
oct1127262362
9357568116
10157115634
1180762335
124474b496
1326720940
1416c1bc54
15dbd7ba9
hex95d64f2

157115634 has 16 divisors (see below), whose sum is σ = 338403072. Its totient is φ = 48343248.

The previous prime is 157115633. The next prime is 157115641. The reversal of 157115634 is 436511751.

It is a junction number, because it is equal to n+sod(n) for n = 157115595 and 157115604.

It is not an unprimeable number, because it can be changed into a prime (157115633) 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, 1007074 + ... + 1007229.

It is an arithmetic number, because the mean of its divisors is an integer number (21150192).

Almost surely, 2157115634 is an apocalyptic number.

157115634 is an abundant number, since it is smaller than the sum of its proper divisors (181287438).

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

157115634 is a wasteful number, since it uses less digits than its factorization.

157115634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014321.

The product of its digits is 12600, while the sum is 33.

The square root of 157115634 is about 12534.5775357608. The cubic root of 157115634 is about 539.6014823741.

It can be divided in two parts, 1571 and 15634, that added together give a triangular number (17205 = T185).

The spelling of 157115634 in words is "one hundred fifty-seven million, one hundred fifteen thousand, six hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 78 2014303 4028606 6042909 12085818 26185939 52371878 78557817 157115634