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139575880 = 2353489397
BaseRepresentation
bin10000101000111…
…00001001001000
3100201122012010001
420110130021020
5241212412010
621503332344
73313242523
oct1024341110
9321565101
10139575880
1171872474
123a8b10b4
1322bbc2a2
1414773bba
15c3c0c3a
hex851c248

139575880 has 16 divisors (see below), whose sum is σ = 314045820. Its totient is φ = 55830336.

The previous prime is 139575859. The next prime is 139575901. The reversal of 139575880 is 88575931.

It is an interprime number because it is at equal distance from previous prime (139575859) and next prime (139575901).

It can be written as a sum of positive squares in 2 ways, for example, as 130370724 + 9205156 = 11418^2 + 3034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 139575880.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1744659 + ... + 1744738.

Almost surely, 2139575880 is an apocalyptic number.

139575880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139575880 is an abundant number, since it is smaller than the sum of its proper divisors (174469940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139575880 is a wasteful number, since it uses less digits than its factorization.

139575880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489408 (or 3489404 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 139575880 is about 11814.2236308612. The cubic root of 139575880 is about 518.7245368060.

The spelling of 139575880 in words is "one hundred thirty-nine million, five hundred seventy-five thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3489397 6978794 13957588 17446985 27915176 34893970 69787940 139575880