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2118383838212 = 229831117482323
BaseRepresentation
bin11110110100111001100…
…001000010010000000100
321111111220210220221021112
4132310321201002100010
5234201422230310322
64301101101304152
7306022345345355
oct36647141022004
97444823827245
102118383838212
117474464a5704
122a2682565058
131249bb977595
147475d2d5d2c
153a1861405e2
hex1ed39842404

2118383838212 has 24 divisors (see below), whose sum is σ = 3714272942016. Its totient is φ = 1057164935328.

The previous prime is 2118383838167. The next prime is 2118383838217. The reversal of 2118383838212 is 2128383838112.

It is not an unprimeable number, because it can be changed into a prime (2118383838217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4150883 + ... + 4633205.

It is an arithmetic number, because the mean of its divisors is an integer number (154761372584).

Almost surely, 22118383838212 is an apocalyptic number.

It is an amenable number.

2118383838212 is a deficient number, since it is larger than the sum of its proper divisors (1595889103804).

2118383838212 is a wasteful number, since it uses less digits than its factorization.

2118383838212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484427 (or 484425 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The spelling of 2118383838212 in words is "two trillion, one hundred eighteen billion, three hundred eighty-three million, eight hundred thirty-eight thousand, two hundred twelve".

Divisors: 1 2 4 983 1117 1966 2234 3932 4468 482323 964646 1098011 1929292 2196022 4392044 474123509 538754791 948247018 1077509582 1896494036 2155019164 529595959553 1059191919106 2118383838212