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138914602 = 2238329147
BaseRepresentation
bin10000100011110…
…10101100101010
3100200101121000021
420101322230222
5241030231402
621441231054
73304516561
oct1021725452
9320347007
10138914602
1171460662
123a63248a
1322a1a2b8
1414640bd8
15c2ded37
hex847ab2a

138914602 has 8 divisors (see below), whose sum is σ = 208466496. Its totient is φ = 69425772.

The previous prime is 138914591. The next prime is 138914609. The reversal of 138914602 is 206419831.

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

It is not an unprimeable number, because it can be changed into a prime (138914609) by changing a digit.

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, 9808 + ... + 19339.

It is an arithmetic number, because the mean of its divisors is an integer number (26058312).

Almost surely, 2138914602 is an apocalyptic number.

138914602 is a deficient number, since it is larger than the sum of its proper divisors (69551894).

138914602 is a wasteful number, since it uses less digits than its factorization.

138914602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31532.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 138914602 is about 11786.2038842029. The cubic root of 138914602 is about 517.9040409995.

The spelling of 138914602 in words is "one hundred thirty-eight million, nine hundred fourteen thousand, six hundred two".

Divisors: 1 2 2383 4766 29147 58294 69457301 138914602