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157270485 = 3517677911
BaseRepresentation
bin10010101111111…
…00000111010101
3101221221011112210
421113330013111
5310230123420
623334504033
73616530351
oct1127740725
9357834483
10157270485
1180858709
1244805019
1326776278
1416c5c461
15dc189e0
hex95fc1d5

157270485 has 32 divisors (see below), whose sum is σ = 267121152. Its totient is φ = 78740480.

The previous prime is 157270453. The next prime is 157270493. The reversal of 157270485 is 584072751.

It is not a de Polignac number, because 157270485 - 25 = 157270453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172180 + ... + 173090.

It is an arithmetic number, because the mean of its divisors is an integer number (8347536).

Almost surely, 2157270485 is an apocalyptic number.

157270485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157270485 is a deficient number, since it is larger than the sum of its proper divisors (109850667).

157270485 is a wasteful number, since it uses less digits than its factorization.

157270485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 157270485 is about 12540.7529678245. The cubic root of 157270485 is about 539.7786987569.

The spelling of 157270485 in words is "one hundred fifty-seven million, two hundred seventy thousand, four hundred eighty-five".

Divisors: 1 3 5 15 17 51 85 255 677 911 2031 2733 3385 4555 10155 11509 13665 15487 34527 46461 57545 77435 172635 232305 616747 1850241 3083735 9251205 10484699 31454097 52423495 157270485