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3130291563169 = 312570732
BaseRepresentation
bin101101100011010011111…
…010101010101010100001
3102002020211101211110112211
4231203103322222222201
5402241314120010134
610354011443522121
7442104354161611
oct55432372525241
912066741743484
103130291563169
11aa7604a87601
12426808389341
13199253c3a304
14ab714dbaa41
155665ce9b764
hex2d8d3eaaaa1

3130291563169 has 9 divisors (see below), whose sum is σ = 3234582712179. Its totient is φ = 3029261338080.

The previous prime is 3130291563143. The next prime is 3130291563221. The reversal of 3130291563169 is 9613651920313.

It is a happy number.

The square root of 3130291563169 is 1769263.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2458075230625 + 672216332544 = 1567825^2 + 819888^2 .

It is not a de Polignac number, because 3130291563169 - 27 = 3130291563041 is a prime.

It is a super-2 number, since 2×31302915631692 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3130291561169) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54818617 + ... + 54875689.

It is an arithmetic number, because the mean of its divisors is an integer number (359398079131).

Almost surely, 23130291563169 is an apocalyptic number.

3130291563169 is the 1769263-rd square number.

3130291563169 is the 884632-nd centered octagonal number.

It is an amenable number.

3130291563169 is a deficient number, since it is larger than the sum of its proper divisors (104291149010).

3130291563169 is an frugal number, since it uses more digits than its factorization.

3130291563169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114208 (or 57104 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 49.

Multiplying 3130291563169 by its sum of digits (49), we get a square (153384286595281 = 123848412).

The spelling of 3130291563169 in words is "three trillion, one hundred thirty billion, two hundred ninety-one million, five hundred sixty-three thousand, one hundred sixty-nine".

Divisors: 1 31 961 57073 1769263 54847153 3257327329 100977147199 3130291563169