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11918850050 = 252238377001
BaseRepresentation
bin10110001100110101…
…10011100000000010
31010202122102022112202
423012122303200002
5143402211200200
65250410153202
7601234360652
oct130632634002
933678368482
1011918850050
1150669754a8
122387722802
13117c3c0bc3
14810d36362
1549b5911d5
hex2c66b3802

11918850050 has 12 divisors (see below), whose sum is σ = 22169061186. Its totient is φ = 4767540000.

The previous prime is 11918849993. The next prime is 11918850061. The reversal of 11918850050 is 5005881911.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9591655969 + 2327194081 = 97937^2 + 48241^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11918849986 and 11918850013.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119188451 + ... + 119188550.

Almost surely, 211918850050 is an apocalyptic number.

11918850050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11918850050 is a deficient number, since it is larger than the sum of its proper divisors (10250211136).

11918850050 is a wasteful number, since it uses less digits than its factorization.

11918850050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238377013 (or 238377008 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 38.

The spelling of 11918850050 in words is "eleven billion, nine hundred eighteen million, eight hundred fifty thousand, fifty".

Divisors: 1 2 5 10 25 50 238377001 476754002 1191885005 2383770010 5959425025 11918850050