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11869618904 = 2311213943231
BaseRepresentation
bin10110000110111110…
…00000001011011000
31010122012210010002222
423003133000023120
5143302110301104
65241451043212
7600066044633
oct130337001330
933565703088
1011869618904
1150410aa400
122373140508
131172144750
1480859cc1a
154970b91be
hex2c37c02d8

11869618904 has 48 divisors (see below), whose sum is σ = 26344469760. Its totient is φ = 4980254400.

The previous prime is 11869618903. The next prime is 11869618921. The reversal of 11869618904 is 40981696811.

It is a super-2 number, since 2×118696189042 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11869618903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459032 + ... + 484199.

It is an arithmetic number, because the mean of its divisors is an integer number (548843120).

Almost surely, 211869618904 is an apocalyptic number.

It is an amenable number.

11869618904 is an abundant number, since it is smaller than the sum of its proper divisors (14474850856).

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

11869618904 is a wasteful number, since it uses less digits than its factorization.

11869618904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943272 (or 943257 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 53.

The spelling of 11869618904 in words is "eleven billion, eight hundred sixty-nine million, six hundred eighteen thousand, nine hundred four".

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 121 143 242 286 484 572 968 1144 1573 3146 6292 12584 943231 1886462 3772924 7545848 10375541 12262003 20751082 24524006 41502164 49048012 83004328 98096024 114130951 134882033 228261902 269764066 456523804 539528132 913047608 1079056264 1483702363 2967404726 5934809452 11869618904