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16113157 = 38214217
BaseRepresentation
bin111101011101…
…111000000101
31010022122002121
4331131320011
513111110112
61333205541
7253650064
oct75357005
933278077
1016113157
119106065
1254908b1
133452218
1421d61db
151634407
hexf5de05

16113157 has 4 divisors (see below), whose sum is σ = 16121196. Its totient is φ = 16105120.

The previous prime is 16113137. The next prime is 16113173. The reversal of 16113157 is 75131161.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14394436 + 1718721 = 3794^2 + 1311^2 .

It is a cyclic number.

It is not a de Polignac number, because 16113157 - 27 = 16113029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16113137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713 + ... + 5929.

It is an arithmetic number, because the mean of its divisors is an integer number (4030299).

Almost surely, 216113157 is an apocalyptic number.

It is an amenable number.

16113157 is a deficient number, since it is larger than the sum of its proper divisors (8039).

16113157 is an equidigital number, since it uses as much as digits as its factorization.

16113157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038.

The product of its digits is 630, while the sum is 25.

The square root of 16113157 is about 4014.1197042440. The cubic root of 16113157 is about 252.5768520763.

The spelling of 16113157 in words is "sixteen million, one hundred thirteen thousand, one hundred fifty-seven".

Divisors: 1 3821 4217 16113157