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126161107 = 29712863
BaseRepresentation
bin1111000010100…
…01000011010011
322210101122111121
413201101003103
5224244123412
620304023111
73061231432
oct741210323
9283348447
10126161107
116523a786
1236301a97
13201a3357
1412a81119
15b121107
hex78510d3

126161107 has 12 divisors (see below), whose sum is σ = 132528960. Its totient is φ = 119955920.

The previous prime is 126161093. The next prime is 126161129. The reversal of 126161107 is 701161621.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-126161107 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 (126161177) 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, 145758 + ... + 146620.

It is an arithmetic number, because the mean of its divisors is an integer number (11044080).

Almost surely, 2126161107 is an apocalyptic number.

126161107 is a deficient number, since it is larger than the sum of its proper divisors (6367853).

126161107 is an frugal number, since it uses more digits than its factorization.

126161107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 126161107 is about 11232.1461439923. The cubic root of 126161107 is about 501.5433737598.

The spelling of 126161107 in words is "one hundred twenty-six million, one hundred sixty-one thousand, one hundred seven".

Divisors: 1 29 71 863 2059 5041 25027 61273 146189 1776917 4350383 126161107