Search a number
-
+
130928642868 = 22310910720239
BaseRepresentation
bin111100111101111110…
…1001000101100110100
3110111221122100012011010
41321323331020230310
54121120213032433
6140051531112220
712313351046652
oct1717375105464
9414848305133
10130928642868
1150587895281
122145b8a2670
13c4673b955a
1464a095ddd2
15361464be63
hex1e7bf48b34

130928642868 has 12 divisors (see below), whose sum is σ = 305500166720. Its totient is φ = 43642880952.

The previous prime is 130928642849. The next prime is 130928642947. The reversal of 130928642868 is 868246829031.

It is a happy number.

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

It is a congruent number.

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, 5455360108 + ... + 5455360131.

Almost surely, 2130928642868 is an apocalyptic number.

It is an amenable number.

130928642868 is an abundant number, since it is smaller than the sum of its proper divisors (174571523852).

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

130928642868 is a wasteful number, since it uses less digits than its factorization.

130928642868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10910720246 (or 10910720244 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 130928642868 in words is "one hundred thirty billion, nine hundred twenty-eight million, six hundred forty-two thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 10910720239 21821440478 32732160717 43642880956 65464321434 130928642868