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11807713845 = 35531674679
BaseRepresentation
bin10101111111100101…
…10110101000110101
31010110220022000100000
422333302312220311
5143140233320340
65231400141513
7565414624464
oct127762665065
933426260300
1011807713845
11500a1681a4
122356467899
13116237b635
148002869db
1549193bd30
hex2bfcb6a35

11807713845 has 96 divisors (see below), whose sum is σ = 22241157120. Its totient is φ = 6002061120.

The previous prime is 11807713787. The next prime is 11807713847. The reversal of 11807713845 is 54831770811.

It is not a de Polignac number, because 11807713845 - 210 = 11807712821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11807713845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11807713847) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2521216 + ... + 2525894.

It is an arithmetic number, because the mean of its divisors is an integer number (231678720).

Almost surely, 211807713845 is an apocalyptic number.

11807713845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11807713845 is a deficient number, since it is larger than the sum of its proper divisors (10433443275).

11807713845 is an equidigital number, since it uses as much as digits as its factorization.

11807713845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4797 (or 4785 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 11807713845 in words is "eleven billion, eight hundred seven million, seven hundred thirteen thousand, eight hundred forty-five".

Divisors: 1 3 5 9 15 27 31 45 67 81 93 135 155 201 243 279 335 405 465 603 837 1005 1215 1395 1809 2077 2511 3015 4185 4679 5427 6231 7533 9045 10385 12555 14037 16281 18693 23395 27135 31155 37665 42111 56079 70185 81405 93465 126333 145049 168237 210555 280395 313493 378999 435147 504711 631665 725245 841185 940479 1136997 1305441 1567465 1894995 2175735 2523555 2821437 3916323 4702395 5684985 6527205 8464311 9718283 11748969 14107185 19581615 25392933 29154849 35246907 42321555 48591415 58744845 76178799 87464547 126964665 145774245 176234535 262393641 380893995 437322735 787180923 1311968205 2361542769 3935904615 11807713845