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3254131621 = 134715733923
BaseRepresentation
bin1100000111110110…
…0001101110100101
322101210020000101101
43001331201232211
523131024202441
61254523200101
7143432443126
oct30175415645
98353200341
103254131621
11141a966284
12769976031
133cb242690
1422c27a04d
15140a42231
hexc1f61ba5

3254131621 has 16 divisors (see below), whose sum is σ = 3601914624. Its totient is φ = 2921091264.

The previous prime is 3254131613. The next prime is 3254131637. The reversal of 3254131621 is 1261314523.

It is not a de Polignac number, because 3254131621 - 23 = 3254131613 is a prime.

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 3254131621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3254131651) 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 15 ways as a sum of consecutive naturals, for example, 78966 + ... + 112888.

It is an arithmetic number, because the mean of its divisors is an integer number (225119664).

Almost surely, 23254131621 is an apocalyptic number.

It is an amenable number.

3254131621 is a deficient number, since it is larger than the sum of its proper divisors (347783003).

3254131621 is a wasteful number, since it uses less digits than its factorization.

3254131621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34140.

The product of its digits is 4320, while the sum is 28.

The square root of 3254131621 is about 57044.9964589358. The cubic root of 3254131621 is about 1481.8754561469.

The spelling of 3254131621 in words is "three billion, two hundred fifty-four million, one hundred thirty-one thousand, six hundred twenty-one".

Divisors: 1 13 47 157 611 2041 7379 33923 95927 440999 1594381 5325911 20726953 69236843 250317817 3254131621