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3130615072 = 25137525517
BaseRepresentation
bin1011101010011001…
…0110010100100000
322002011210201112101
42322212112110200
522402414140242
61234351540144
7140402534434
oct27246262440
98064721471
103130615072
111367172492
1273452a654
133ab786c70
14219ac69c4
15134c949b7
hexba996520

3130615072 has 24 divisors (see below), whose sum is σ = 6637506876. Its totient is φ = 1444899072.

The previous prime is 3130615039. The next prime is 3130615097. The reversal of 3130615072 is 2705160313.

It can be written as a sum of positive squares in 2 ways, for example, as 3126599056 + 4016016 = 55916^2 + 2004^2 .

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 3130615072.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3762343 + ... + 3763174.

Almost surely, 23130615072 is an apocalyptic number.

3130615072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3130615072 is an abundant number, since it is smaller than the sum of its proper divisors (3506891804).

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

3130615072 is a wasteful number, since it uses less digits than its factorization.

3130615072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7525540 (or 7525532 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 3130615072 is about 55951.8996281628. The cubic root of 3130615072 is about 1462.8840022360.

Adding to 3130615072 its reverse (2705160313), we get a palindrome (5835775385).

The spelling of 3130615072 in words is "three billion, one hundred thirty million, six hundred fifteen thousand, seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 7525517 15051034 30102068 60204136 97831721 120408272 195663442 240816544 391326884 782653768 1565307536 3130615072