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157124142 = 23271247017
BaseRepresentation
bin10010101110110…
…00011000101110
3101221122201210200
421113120120232
5310210433032
623331414330
73615350610
oct1127303056
9357581720
10157124142
118076876a
12447543a6
1326724786
1416c20db0
15dbda47c
hex95d862e

157124142 has 24 divisors (see below), whose sum is σ = 389069616. Its totient is φ = 44892576.

The previous prime is 157124141. The next prime is 157124153. The reversal of 157124142 is 241421751.

157124142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157124141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623383 + ... + 623634.

It is an arithmetic number, because the mean of its divisors is an integer number (16211234).

Almost surely, 2157124142 is an apocalyptic number.

157124142 is an abundant number, since it is smaller than the sum of its proper divisors (231945474).

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

157124142 is a wasteful number, since it uses less digits than its factorization.

157124142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247032 (or 1247029 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 157124142 is about 12534.9169123692. The cubic root of 157124142 is about 539.6112222208.

Adding to 157124142 its reverse (241421751), we get a palindrome (398545893).

The spelling of 157124142 in words is "one hundred fifty-seven million, one hundred twenty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 1247017 2494034 3741051 7482102 8729119 11223153 17458238 22446306 26187357 52374714 78562071 157124142