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131026646016253 = 13294097069120209
BaseRepresentation
bin11101110010101100000100…
…101100010010000011111101
3122011221000200020121120212201
4131302230010230102003331
5114133220032340010003
61142400451001031501
736412235301645211
oct3562540454220375
9564830606546781
10131026646016253
11388270a7900559
1212841a12785591
1358159b50b2040
14244da1b420941
151023485270b1d
hex772b04b120fd

131026646016253 has 32 divisors (see below), whose sum is σ = 146350145340000. Its totient is φ = 116474097180672.

The previous prime is 131026646016251. The next prime is 131026646016341. The reversal of 131026646016253 is 352610646620131.

It can be written as a sum of positive squares in 16 ways, for example, as 52376673031929 + 78649972984324 = 7237173^2 + 8868482^2 .

It is a cyclic number.

It is not a de Polignac number, because 131026646016253 - 21 = 131026646016251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131026646016251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1089930213 + ... + 1090050421.

It is an arithmetic number, because the mean of its divisors is an integer number (4573442041875).

Almost surely, 2131026646016253 is an apocalyptic number.

131026646016253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131026646016253 is a deficient number, since it is larger than the sum of its proper divisors (15323499323747).

131026646016253 is a wasteful number, since it uses less digits than its factorization.

131026646016253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127729.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 131026646016253 in words is "one hundred thirty-one trillion, twenty-six billion, six hundred forty-six million, sixteen thousand, two hundred fifty-three".

Divisors: 1 13 29 377 409 5317 7069 11861 91897 120209 154193 205001 1562717 2665013 2891221 3486061 37585873 45318793 49165481 83845409 639151253 849757421 1089990317 1425798949 11046846473 18535386337 24642965209 320358547717 347550785189 4518160207457 10078972770481 131026646016253