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157984455 = 3510979601
BaseRepresentation
bin10010110101010…
…10011011000111
3102000021102221010
421122222123013
5310421000310
623402053303
73625563036
oct1132523307
9360242833
10157984455
11811a6072
1244aaa233
1326966235
1416da671d
15dd0a320
hex96aa6c7

157984455 has 16 divisors (see below), whose sum is σ = 253031904. Its totient is φ = 84172800.

The previous prime is 157984433. The next prime is 157984469. The reversal of 157984455 is 554489751.

It is a happy number.

It is not a de Polignac number, because 157984455 - 25 = 157984423 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11655 + ... + 21255.

It is an arithmetic number, because the mean of its divisors is an integer number (15814494).

Almost surely, 2157984455 is an apocalyptic number.

157984455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157984455 is a deficient number, since it is larger than the sum of its proper divisors (95047449).

157984455 is a wasteful number, since it uses less digits than its factorization.

157984455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706.

The product of its digits is 1008000, while the sum is 48.

The square root of 157984455 is about 12569.1867278675. The cubic root of 157984455 is about 540.5942874285.

The spelling of 157984455 in words is "one hundred fifty-seven million, nine hundred eighty-four thousand, four hundred fifty-five".

Divisors: 1 3 5 15 1097 3291 5485 9601 16455 28803 48005 144015 10532297 31596891 52661485 157984455