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2521252131 = 31874344839
BaseRepresentation
bin1001011001000111…
…0100000100100011
320111201011212201120
42112101310010203
520130420032011
61054103103323
7116323201206
oct22621640443
96451155646
102521252131
1110841aa052
125a4441b43
13312460788
1419cbc393d
15eb527a06
hex96474123

2521252131 has 8 divisors (see below), whose sum is σ = 3361923840. Its totient is φ = 1680707592.

The previous prime is 2521252121. The next prime is 2521252159. The reversal of 2521252131 is 1312521252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2521252131 - 210 = 2521251107 is a prime.

It is a super-2 number, since 2×25212521312 = 12713424616144082322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2521252121) 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 7 ways as a sum of consecutive naturals, for example, 33810 + ... + 78648.

It is an arithmetic number, because the mean of its divisors is an integer number (420240480).

Almost surely, 22521252131 is an apocalyptic number.

2521252131 is a deficient number, since it is larger than the sum of its proper divisors (840671709).

2521252131 is a wasteful number, since it uses less digits than its factorization.

2521252131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63585.

The product of its digits is 1200, while the sum is 24.

The square root of 2521252131 is about 50212.0715665068. The cubic root of 2521252131 is about 1361.0437725025.

Adding to 2521252131 its reverse (1312521252), we get a palindrome (3833773383).

The spelling of 2521252131 in words is "two billion, five hundred twenty-one million, two hundred fifty-two thousand, one hundred thirty-one".

Divisors: 1 3 18743 44839 56229 134517 840417377 2521252131