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139568303 = 767523569
BaseRepresentation
bin10000101000110…
…10010010101111
3100201121210201102
420110122102233
5241212141203
621503233315
73313211450
oct1024322257
9321553642
10139568303
1171867806
123a8a883b
1322bb89c4
1414771127
15c3bd888
hex851a4af

139568303 has 16 divisors (see below), whose sum is σ = 162481920. Its totient is φ = 117412416.

The previous prime is 139568227. The next prime is 139568323. The reversal of 139568303 is 303865931.

It is a cyclic number.

It is not a de Polignac number, because 139568303 - 216 = 139502767 is a prime.

It is a super-2 number, since 2×1395683032 = 38958622404599618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139568323) 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 15 ways as a sum of consecutive naturals, for example, 245003 + ... + 245571.

It is an arithmetic number, because the mean of its divisors is an integer number (10155120).

Almost surely, 2139568303 is an apocalyptic number.

139568303 is a deficient number, since it is larger than the sum of its proper divisors (22913617).

139568303 is an equidigital number, since it uses as much as digits as its factorization.

139568303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 139568303 is about 11813.9029537236. The cubic root of 139568303 is about 518.7151501628.

The spelling of 139568303 in words is "one hundred thirty-nine million, five hundred sixty-eight thousand, three hundred three".

Divisors: 1 7 67 469 523 569 3661 3983 35041 38123 245287 266861 297587 2083109 19938329 139568303