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157021119 = 3320632819
BaseRepresentation
bin10010101101111…
…11001110111111
3101221110111111000
421112333032333
5310144133434
623325301343
73614441343
oct1126771677
9357414430
10157021119
11806a8322
1244704853
13266b9908
1416bd5623
15dbb9b99
hex95bf3bf

157021119 has 16 divisors (see below), whose sum is σ = 232819200. Its totient is φ = 104592888.

The previous prime is 157021099. The next prime is 157021141. The reversal of 157021119 is 911120751.

It is not a de Polignac number, because 157021119 - 28 = 157020863 is a prime.

It is a super-2 number, since 2×1570211192 = 49311263624024322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 157021092 and 157021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157021159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54292 + ... + 57110.

It is an arithmetic number, because the mean of its divisors is an integer number (14551200).

Almost surely, 2157021119 is an apocalyptic number.

157021119 is a deficient number, since it is larger than the sum of its proper divisors (75798081).

157021119 is a wasteful number, since it uses less digits than its factorization.

157021119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891 (or 4885 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 27.

The square root of 157021119 is about 12530.8067976487. The cubic root of 157021119 is about 539.4932591866.

The spelling of 157021119 in words is "one hundred fifty-seven million, twenty-one thousand, one hundred nineteen".

Divisors: 1 3 9 27 2063 2819 6189 8457 18567 25371 55701 76113 5815597 17446791 52340373 157021119