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18376702245 = 32511172196761
BaseRepresentation
bin10001000111010101…
…100011100100100101
31202102201000012100200
4101013111203210211
5300113413432440
612235300301113
71220251251246
oct210725434445
952381005320
1018376702245
117880195430
12368a3a1799
13196b2a5715
14c64888ccd
157284b8c30
hex447563925

18376702245 has 144 divisors (see below), whose sum is σ = 38861484480. Its totient is φ = 7943270400.

The previous prime is 18376702237. The next prime is 18376702297. The reversal of 18376702245 is 54220767381.

It is not a de Polignac number, because 18376702245 - 23 = 18376702237 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 18376702245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2714665 + ... + 2721425.

It is an arithmetic number, because the mean of its divisors is an integer number (269871420).

Almost surely, 218376702245 is an apocalyptic number.

18376702245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18376702245 is an abundant number, since it is smaller than the sum of its proper divisors (20484782235).

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

18376702245 is a wasteful number, since it uses less digits than its factorization.

18376702245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6836 (or 6816 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 18376702245 in words is "eighteen billion, three hundred seventy-six million, seven hundred two thousand, two hundred forty-five".

Divisors: 1 3 5 9 11 15 17 19 33 45 51 55 57 85 95 99 153 165 171 187 209 255 285 289 323 495 561 627 765 855 867 935 969 1045 1445 1615 1683 1881 2601 2805 2907 3135 3179 3553 4335 4845 5491 6761 8415 9405 9537 10659 13005 14535 15895 16473 17765 20283 27455 28611 31977 33805 47685 49419 53295 60401 60849 74371 82365 101415 114937 128459 143055 159885 181203 223113 247095 302005 304245 344811 371855 385377 543609 574685 642295 669339 906015 1034433 1115565 1156131 1264307 1413049 1724055 1926885 1953929 2183803 2718045 3346695 3792921 4239147 5172165 5780655 5861787 6321535 6551409 7065245 9769645 10919015 11378763 12717441 17585361 18964605 19654227 21195735 21493219 24021833 29308935 32757045 37124651 56893815 63587205 64479657 72065499 87926805 98271135 107466095 111373953 120109165 185623255 193438971 216196497 322398285 334121859 360327495 408371161 556869765 967194855 1080982485 1225113483 1670609295 2041855805 3675340449 6125567415 18376702245