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157248188 = 22226717341
BaseRepresentation
bin10010101111101…
…10101010111100
3101221220000221222
421113312222330
5310223420223
623334212512
73616405346
oct1127665274
9357800858
10157248188
1180842989
12447b4138
1326769086
1416c54296
15dc120c8
hex95f6abc

157248188 has 12 divisors (see below), whose sum is σ = 275321592. Its totient is φ = 78584880.

The previous prime is 157248149. The next prime is 157248209. The reversal of 157248188 is 881842751.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 398 + ... + 17738.

It is an arithmetic number, because the mean of its divisors is an integer number (22943466).

Almost surely, 2157248188 is an apocalyptic number.

It is an amenable number.

157248188 is a deficient number, since it is larger than the sum of its proper divisors (118073404).

157248188 is a wasteful number, since it uses less digits than its factorization.

157248188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19612 (or 19610 counting only the distinct ones).

The product of its digits is 143360, while the sum is 44.

The square root of 157248188 is about 12539.8639546049. The cubic root of 157248188 is about 539.7531885360.

The spelling of 157248188 in words is "one hundred fifty-seven million, two hundred forty-eight thousand, one hundred eighty-eight".

Divisors: 1 2 4 2267 4534 9068 17341 34682 69364 39312047 78624094 157248188