Search a number
-
+
625767146868 = 22352147262239
BaseRepresentation
bin10010001101100101010…
…00001110010101110100
32012211012210021201222010
421012302220032111310
540223032342144433
61155250133404220
763132043662123
oct11066250162564
92184183251863
10625767146868
112214282713a6
12a1340199670
13470180b3086
1422404483aba
1511427077e63
hex91b2a0e574

625767146868 has 12 divisors (see below), whose sum is σ = 1460123342720. Its totient is φ = 208589048952.

The previous prime is 625767146827. The next prime is 625767146869. The reversal of 625767146868 is 868641767526.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 625767146799 and 625767146808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625767146869) 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, 26073631108 + ... + 26073631131.

Almost surely, 2625767146868 is an apocalyptic number.

It is an amenable number.

625767146868 is an abundant number, since it is smaller than the sum of its proper divisors (834356195852).

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

625767146868 is a wasteful number, since it uses less digits than its factorization.

625767146868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52147262246 (or 52147262244 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 66.

The spelling of 625767146868 in words is "six hundred twenty-five billion, seven hundred sixty-seven million, one hundred forty-six thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 52147262239 104294524478 156441786717 208589048956 312883573434 625767146868