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8912138 = 231714057
BaseRepresentation
bin100001111111…
…110100001010
3121202210011012
4201333310022
54240142023
6515003522
7135515624
oct41776412
917683135
108912138
115037904
122b995a2
131b00671
14127dc14
15bb0978
hex87fd0a

8912138 has 8 divisors (see below), whose sum is σ = 13411332. Its totient is φ = 4441696.

The previous prime is 8912107. The next prime is 8912147. The reversal of 8912138 is 8312198.

It can be written as a sum of positive squares in 2 ways, for example, as 6265009 + 2647129 = 2503^2 + 1627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6395 + ... + 7662.

Almost surely, 28912138 is an apocalyptic number.

8912138 is a deficient number, since it is larger than the sum of its proper divisors (4499194).

8912138 is a wasteful number, since it uses less digits than its factorization.

8912138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14376.

The product of its digits is 3456, while the sum is 32.

The square root of 8912138 is about 2985.3204183136. The cubic root of 8912138 is about 207.3292774876.

The spelling of 8912138 in words is "eight million, nine hundred twelve thousand, one hundred thirty-eight".

Divisors: 1 2 317 634 14057 28114 4456069 8912138