Search a number
-
+
115720654974 = 23311793475721
BaseRepresentation
bin110101111000101111…
…1010001000001111110
3102001200202211100201020
41223301133101001332
53343443441424344
6125054503125010
711234444223561
oct1536137210176
9361622740636
10115720654974
1145093324941
121a516743766
13abb274a452
14585ac784d8
153024451719
hex1af17d107e

115720654974 has 32 divisors (see below), whose sum is σ = 240241904640. Its totient is φ = 37120689600.

The previous prime is 115720654949. The next prime is 115720654979. The reversal of 115720654974 is 479456027511.

It is a super-2 number, since 2×1157206549742 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115720654979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1704567 + ... + 1771154.

It is an arithmetic number, because the mean of its divisors is an integer number (7507559520).

Almost surely, 2115720654974 is an apocalyptic number.

115720654974 is an abundant number, since it is smaller than the sum of its proper divisors (124521249666).

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

115720654974 is a wasteful number, since it uses less digits than its factorization.

115720654974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475936.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 115720654974 in words is "one hundred fifteen billion, seven hundred twenty million, six hundred fifty-four thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 31 62 93 179 186 358 537 1074 5549 11098 16647 33294 3475721 6951442 10427163 20854326 107747351 215494702 323242053 622154059 646484106 1244308118 1866462177 3732924354 19286775829 38573551658 57860327487 115720654974