Search a number
-
+
49994382051 = 32171361923993
BaseRepresentation
bin101110100011111001…
…011011101011100011
311210001012020202020200
4232203321123223203
51304342030211201
634544521040243
73416623143615
oct564371335343
9153035222220
1049994382051
111a225586219
129833026083
1349398538b3
1425c3aaadb5
151479135386
hexba3e5bae3

49994382051 has 24 divisors (see below), whose sum is σ = 76470797520. Its totient is φ = 31365413376.

The previous prime is 49994382049. The next prime is 49994382059. The reversal of 49994382051 is 15028349994.

It is not a de Polignac number, because 49994382051 - 21 = 49994382049 is a prime.

It is a super-2 number, since 2×499943820512 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49994382059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2071711 + ... + 2095703.

It is an arithmetic number, because the mean of its divisors is an integer number (3186283230).

Almost surely, 249994382051 is an apocalyptic number.

49994382051 is a deficient number, since it is larger than the sum of its proper divisors (26476415469).

49994382051 is a wasteful number, since it uses less digits than its factorization.

49994382051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37635 (or 37632 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 49994382051 in words is "forty-nine billion, nine hundred ninety-four million, three hundred eighty-two thousand, fifty-one".

Divisors: 1 3 9 17 51 153 13619 23993 40857 71979 122571 215937 231523 407881 694569 1223643 2083707 3670929 326760667 980282001 2940846003 5554931339 16664794017 49994382051