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138008848 = 248625553
BaseRepresentation
bin10000011100111…
…01100100010000
3100121200120112211
420032131210100
5240312240343
621410001504
73264025105
oct1016354420
9317616484
10138008848
11709a20aa
123a276294
1322790c53
1414486aac
15c1b179d
hex839d910

138008848 has 10 divisors (see below), whose sum is σ = 267392174. Its totient is φ = 69004416.

The previous prime is 138008777. The next prime is 138008851. The reversal of 138008848 is 848800831.

It can be written as a sum of positive squares in only one way, i.e., 81938704 + 56070144 = 9052^2 + 7488^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 138008848.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4312761 + ... + 4312792.

Almost surely, 2138008848 is an apocalyptic number.

It is an amenable number.

138008848 is a deficient number, since it is larger than the sum of its proper divisors (129383326).

138008848 is an equidigital number, since it uses as much as digits as its factorization.

138008848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625561 (or 8625555 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 138008848 is about 11747.7167143237. The cubic root of 138008848 is about 516.7759692903.

The spelling of 138008848 in words is "one hundred thirty-eight million, eight thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 8625553 17251106 34502212 69004424 138008848