Search a number
-
+
131521244335033 = 718788749190719
BaseRepresentation
bin11101111001111000101101…
…000011001000101110111001
3122020200022022122121110111211
4131321320231003020232321
5114214321002022210113
61143420005303323121
736463045020204040
oct3571705503105671
9566608278543454
10131521244335033
11389a79347479a3
12129018467504a1
1358505280c1627
14246993b0a1557
151031281a55b3d
hex779e2d0c8bb9

131521244335033 has 4 divisors (see below), whose sum is σ = 150309993525760. Its totient is φ = 112732495144308.

The previous prime is 131521244334979. The next prime is 131521244335043. The reversal of 131521244335033 is 330533442125131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131521244335033 - 213 = 131521244326841 is a prime.

It is a super-2 number, since 2×1315212443350332 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131521244335043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9394374595353 + ... + 9394374595366.

It is an arithmetic number, because the mean of its divisors is an integer number (37577498381440).

Almost surely, 2131521244335033 is an apocalyptic number.

It is an amenable number.

131521244335033 is a deficient number, since it is larger than the sum of its proper divisors (18788749190727).

131521244335033 is an equidigital number, since it uses as much as digits as its factorization.

131521244335033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18788749190726.

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 131521244335033 in words is "one hundred thirty-one trillion, five hundred twenty-one billion, two hundred forty-four million, three hundred thirty-five thousand, thirty-three".

Divisors: 1 7 18788749190719 131521244335033