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34872725 = 521394909
BaseRepresentation
bin1000010100000…
…1110110010101
32102121201101102
42011001312111
532411411400
63243235445
7602261516
oct205016625
972551342
1034872725
1118759438
12b818b85
1372bcb64
1448baa0d
1530dc9d5
hex2141d95

34872725 has 6 divisors (see below), whose sum is σ = 43242210. Its totient is φ = 27898160.

The previous prime is 34872713. The next prime is 34872749. The reversal of 34872725 is 52727843.

It can be written as a sum of positive squares in 3 ways, for example, as 10201636 + 24671089 = 3194^2 + 4967^2 .

It is not a de Polignac number, because 34872725 - 210 = 34871701 is a prime.

It is a super-4 number, since 4×348727254 (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 697430 + ... + 697479.

It is an arithmetic number, because the mean of its divisors is an integer number (7207035).

Almost surely, 234872725 is an apocalyptic number.

It is an amenable number.

34872725 is a deficient number, since it is larger than the sum of its proper divisors (8369485).

34872725 is a wasteful number, since it uses less digits than its factorization.

34872725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394919 (or 1394914 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 34872725 is about 5905.3132855082. The cubic root of 34872725 is about 326.7096494646.

The spelling of 34872725 in words is "thirty-four million, eight hundred seventy-two thousand, seven hundred twenty-five".

Divisors: 1 5 25 1394909 6974545 34872725