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157289852 = 22291355947
BaseRepresentation
bin10010110000000…
…00110101111100
3101221222011010002
421120000311330
5310231233402
623335133432
73616640666
oct1130006574
9357864102
10157289852
1180871215
1244814278
1326782025
1416c65536
15dc1e602
hex9600d7c

157289852 has 12 divisors (see below), whose sum is σ = 284749080. Its totient is φ = 75932976.

The previous prime is 157289843. The next prime is 157289857. The reversal of 157289852 is 258982751.

157289852 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

157289852 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 157289797 and 157289806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157289857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677858 + ... + 678089.

It is an arithmetic number, because the mean of its divisors is an integer number (23729090).

Almost surely, 2157289852 is an apocalyptic number.

It is an amenable number.

157289852 is a deficient number, since it is larger than the sum of its proper divisors (127459228).

157289852 is a wasteful number, since it uses less digits than its factorization.

157289852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355980 (or 1355978 counting only the distinct ones).

The product of its digits is 403200, while the sum is 47.

The square root of 157289852 is about 12541.5251066208. The cubic root of 157289852 is about 539.8008547789.

The spelling of 157289852 in words is "one hundred fifty-seven million, two hundred eighty-nine thousand, eight hundred fifty-two".

Divisors: 1 2 4 29 58 116 1355947 2711894 5423788 39322463 78644926 157289852