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139469127 = 376641387
BaseRepresentation
bin10000101000000…
…10000101000111
3100201102202200020
420110002011013
5241201003002
621501150223
73312316350
oct1024020507
9321382606
10139469127
11717aa246
123a85b373
1322b82815
1414746d27
15c39e2bc
hex8502147

139469127 has 8 divisors (see below), whose sum is σ = 212524416. Its totient is φ = 79696632.

The previous prime is 139469123. The next prime is 139469159. The reversal of 139469127 is 721964931.

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

It is not a de Polignac number, because 139469127 - 22 = 139469123 is a prime.

It is a super-2 number, since 2×1394691272 = 38903274772284258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139469123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3320673 + ... + 3320714.

It is an arithmetic number, because the mean of its divisors is an integer number (26565552).

Almost surely, 2139469127 is an apocalyptic number.

139469127 is a deficient number, since it is larger than the sum of its proper divisors (73055289).

139469127 is an equidigital number, since it uses as much as digits as its factorization.

139469127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641397.

The product of its digits is 81648, while the sum is 42.

The square root of 139469127 is about 11809.7047803914. The cubic root of 139469127 is about 518.5922562519.

The spelling of 139469127 in words is "one hundred thirty-nine million, four hundred sixty-nine thousand, one hundred twenty-seven".

Divisors: 1 3 7 21 6641387 19924161 46489709 139469127