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16277157 = 3213139121
BaseRepresentation
bin111110000101…
…111010100101
31010121222001200
4332011322211
513131332112
61340513113
7255232161
oct76057245
933558050
1016277157
1192082a6
12554b799
1334aba70
142239ca1
151667cdc
hexf85ea5

16277157 has 12 divisors (see below), whose sum is σ = 25320204. Its totient is φ = 10016640.

The previous prime is 16277137. The next prime is 16277159. The reversal of 16277157 is 75177261.

It can be written as a sum of positive squares in 2 ways, for example, as 4124961 + 12152196 = 2031^2 + 3486^2 .

It is not a de Polignac number, because 16277157 - 214 = 16260773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16277159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69444 + ... + 69677.

It is an arithmetic number, because the mean of its divisors is an integer number (2110017).

Almost surely, 216277157 is an apocalyptic number.

It is an amenable number.

16277157 is a deficient number, since it is larger than the sum of its proper divisors (9043047).

16277157 is a wasteful number, since it uses less digits than its factorization.

16277157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139140 (or 139137 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 16277157 is about 4034.4958792890. The cubic root of 16277157 is about 253.4308717592.

The spelling of 16277157 in words is "sixteen million, two hundred seventy-seven thousand, one hundred fifty-seven".

Divisors: 1 3 9 13 39 117 139121 417363 1252089 1808573 5425719 16277157