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157134772 = 2239283693
BaseRepresentation
bin10010101110110…
…10111110110100
3101221200021101101
421113122332310
5310211303042
623331535444
73615423604
oct1127327664
9357607341
10157134772
1180775753
124475a584
1326729572
1416c24c04
15dbdd6b7
hex95dafb4

157134772 has 6 divisors (see below), whose sum is σ = 274985858. Its totient is φ = 78567384.

The previous prime is 157134739. The next prime is 157134787. The reversal of 157134772 is 277431751.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 143856036 + 13278736 = 11994^2 + 3644^2 .

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 as a sum of consecutive naturals, namely, 19641843 + ... + 19641850.

Almost surely, 2157134772 is an apocalyptic number.

It is an amenable number.

157134772 is a deficient number, since it is larger than the sum of its proper divisors (117851086).

157134772 is a wasteful number, since it uses less digits than its factorization.

157134772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39283697 (or 39283695 counting only the distinct ones).

The product of its digits is 41160, while the sum is 37.

The square root of 157134772 is about 12535.3409207728. The cubic root of 157134772 is about 539.6233908111.

The spelling of 157134772 in words is "one hundred fifty-seven million, one hundred thirty-four thousand, seven hundred seventy-two".

Divisors: 1 2 4 39283693 78567386 157134772