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34392131 = 43799817
BaseRepresentation
bin1000001100110…
…0100001000011
32101201022010122
42003030201003
532301022011
63225050455
7565220414
oct203144103
971638118
1034392131
1118460354
12b626a2b
137182197
1447d380b
1530453db
hex20cc843

34392131 has 4 divisors (see below), whose sum is σ = 35191992. Its totient is φ = 33592272.

The previous prime is 34392121. The next prime is 34392133. The reversal of 34392131 is 13129343.

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: 13129343 = 23570841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34392131 is a prime.

It is a super-2 number, since 2×343921312 = 2365637349442322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34392131.

It is not an unprimeable number, because it can be changed into a prime (34392133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399866 + ... + 399951.

It is an arithmetic number, because the mean of its divisors is an integer number (8797998).

Almost surely, 234392131 is an apocalyptic number.

34392131 is a deficient number, since it is larger than the sum of its proper divisors (799861).

34392131 is an equidigital number, since it uses as much as digits as its factorization.

34392131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799860.

The product of its digits is 1944, while the sum is 26.

The square root of 34392131 is about 5864.4804543966. The cubic root of 34392131 is about 325.2018659114.

The spelling of 34392131 in words is "thirty-four million, three hundred ninety-two thousand, one hundred thirty-one".

Divisors: 1 43 799817 34392131