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139130627 = 731905899
BaseRepresentation
bin10000100101011…
…11011100000011
3100200210120100012
420102233130003
5241104140002
621450015135
73306406436
oct1022573403
9320716305
10139130627
1171598999
123a7174ab
1322a9471c
141469981d
15c333d52
hex84af703

139130627 has 4 divisors (see below), whose sum is σ = 141036600. Its totient is φ = 137224656.

The previous prime is 139130617. The next prime is 139130639. The reversal of 139130627 is 726031931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726031931 = 2139133941.

It is a cyclic number.

It is not a de Polignac number, because 139130627 - 210 = 139129603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139130593 and 139130602.

It is not an unprimeable number, because it can be changed into a prime (139130617) 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, 952877 + ... + 953022.

It is an arithmetic number, because the mean of its divisors is an integer number (35259150).

Almost surely, 2139130627 is an apocalyptic number.

139130627 is a deficient number, since it is larger than the sum of its proper divisors (1905973).

139130627 is an equidigital number, since it uses as much as digits as its factorization.

139130627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905972.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 139130627 is about 11795.3646404001. The cubic root of 139130627 is about 518.1723647855.

The spelling of 139130627 in words is "one hundred thirty-nine million, one hundred thirty thousand, six hundred twenty-seven".

Divisors: 1 73 1905899 139130627