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138793001 = 711979923
BaseRepresentation
bin10000100010111…
…01000000101001
3100200011102012112
420101131000221
5241012334001
621434452105
73303502214
oct1021350051
9320142175
10138793001
1171388266
123a594035
13229a6b49
141460c77b
15c2b8cbb
hex845d029

138793001 has 8 divisors (see below), whose sum is σ = 141476544. Its totient is φ = 136129840.

The previous prime is 138792977. The next prime is 138793003. The reversal of 138793001 is 100397831.

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

It is a cyclic number.

It is not a de Polignac number, because 138793001 - 26 = 138792937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138793003) 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, 9026 + ... + 18948.

It is an arithmetic number, because the mean of its divisors is an integer number (17684568).

Almost surely, 2138793001 is an apocalyptic number.

It is an amenable number.

138793001 is a deficient number, since it is larger than the sum of its proper divisors (2683543).

138793001 is an equidigital number, since it uses as much as digits as its factorization.

138793001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10191.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 138793001 is about 11781.0441387850. The cubic root of 138793001 is about 517.7528785024.

The spelling of 138793001 in words is "one hundred thirty-eight million, seven hundred ninety-three thousand, one".

Divisors: 1 71 197 9923 13987 704533 1954831 138793001