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34139508 = 22313218843
BaseRepresentation
bin1000001000111…
…0110101110100
32101020110121020
42002032311310
532214431013
63215421140
7563116044
oct202166564
971213536
1034139508
11182a8577
12b5247b0
1370c41c0
144769724
152ee5623
hex208ed74

34139508 has 24 divisors (see below), whose sum is σ = 85786848. Its totient is φ = 10504416.

The previous prime is 34139507. The next prime is 34139513. The reversal of 34139508 is 80593143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34139507) 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, 109266 + ... + 109577.

It is an arithmetic number, because the mean of its divisors is an integer number (3574452).

Almost surely, 234139508 is an apocalyptic number.

It is an amenable number.

34139508 is an abundant number, since it is smaller than the sum of its proper divisors (51647340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34139508 is a wasteful number, since it uses less digits than its factorization.

34139508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218863 (or 218861 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 34139508 is about 5842.9023609847. The cubic root of 34139508 is about 324.4036654439.

It can be divided in two parts, 3413 and 9508, that added together give a palindrome (12921).

The spelling of 34139508 in words is "thirty-four million, one hundred thirty-nine thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 218843 437686 656529 875372 1313058 2626116 2844959 5689918 8534877 11379836 17069754 34139508