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60139495 = 513271171
BaseRepresentation
bin1110010101101…
…0011111100111
311012011101212201
43211122133213
5110343430440
65544555331
71330114543
oct345323747
9135141781
1060139495
1130a46769
1218182b47
13c5c8600
147db6a23
15542e19a
hex395a7e7

60139495 has 12 divisors (see below), whose sum is σ = 78146856. Its totient is φ = 44410080.

The previous prime is 60139493. The next prime is 60139543. The reversal of 60139495 is 59493106.

It is not a de Polignac number, because 60139495 - 21 = 60139493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60139493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34741 + ... + 36430.

It is an arithmetic number, because the mean of its divisors is an integer number (6512238).

Almost surely, 260139495 is an apocalyptic number.

60139495 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

60139495 is a deficient number, since it is larger than the sum of its proper divisors (18007361).

60139495 is a wasteful number, since it uses less digits than its factorization.

60139495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71202 (or 71189 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 60139495 is about 7754.9658284225. The cubic root of 60139495 is about 391.7899206678.

The spelling of 60139495 in words is "sixty million, one hundred thirty-nine thousand, four hundred ninety-five".

Divisors: 1 5 13 65 169 845 71171 355855 925223 4626115 12027899 60139495