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11868471836 = 2213219191921
BaseRepresentation
bin10110000110110101…
…01000001000011100
31010122010121211121222
423003122220020130
5143301312044321
65241410312512
7600053226464
oct130332501034
933563554558
1011868471836
115040496611
122372888738
131171b32600
14808380ba4
15496e3e3ab
hex2c36a821c

11868471836 has 36 divisors (see below), whose sum is σ = 22608399744. Its totient is φ = 5449017600.

The previous prime is 11868471803. The next prime is 11868471841. The reversal of 11868471836 is 63817486811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83156 + ... + 175076.

It is an arithmetic number, because the mean of its divisors is an integer number (628011104).

Almost surely, 211868471836 is an apocalyptic number.

It is an amenable number.

11868471836 is a deficient number, since it is larger than the sum of its proper divisors (10739927908).

11868471836 is a wasteful number, since it uses less digits than its factorization.

11868471836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92142 (or 92127 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The spelling of 11868471836 in words is "eleven billion, eight hundred sixty-eight million, four hundred seventy-one thousand, eight hundred thirty-six".

Divisors: 1 2 4 13 26 52 169 191 338 382 676 764 2483 4966 9932 32279 64558 91921 129116 183842 367684 1194973 2389946 4779892 15534649 17556911 31069298 35113822 62138596 70227644 228239843 456479686 912959372 2967117959 5934235918 11868471836