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8108780043 = 3721321941419
BaseRepresentation
bin1111000110101001…
…00010101000001011
3202221010002201001210
413203110202220023
5113101321430133
63420343144203
7404641331100
oct74324425013
922833081053
108108780043
113491216511
1216a3745063
139c2c3c100
1456cd02aa7
15326d36763
hex1e3522a0b

8108780043 has 144 divisors (see below), whose sum is σ = 14720227200. Its totient is φ = 3943779840.

The previous prime is 8108780021. The next prime is 8108780047. The reversal of 8108780043 is 3400878018.

It is not a de Polignac number, because 8108780043 - 25 = 8108780011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 8108779983 and 8108780010.

It is not an unprimeable number, because it can be changed into a prime (8108780047) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 19352488 + ... + 19352906.

It is an arithmetic number, because the mean of its divisors is an integer number (102223800).

Almost surely, 28108780043 is an apocalyptic number.

8108780043 is a deficient number, since it is larger than the sum of its proper divisors (6611447157).

8108780043 is a wasteful number, since it uses less digits than its factorization.

8108780043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 8108780043 is about 90048.7648055208. The cubic root of 8108780043 is about 2009.0242240318.

The spelling of 8108780043 in words is "eight billion, one hundred eight million, seven hundred eighty thousand, forty-three".

Divisors: 1 3 7 13 19 21 39 41 49 57 91 123 133 147 169 247 273 287 399 419 507 533 637 741 779 861 931 1183 1257 1599 1729 1911 2009 2337 2793 2933 3211 3549 3731 5187 5447 5453 6027 6929 7961 8281 8799 9633 10127 11193 12103 16341 16359 17179 20531 20787 22477 23883 24843 26117 30381 36309 38129 38171 48503 51537 55727 61593 67431 70811 70889 78351 103493 114387 114513 120253 131651 145509 157339 167181 212433 212667 223327 266903 310479 326401 339521 360759 390089 394953 472017 495677 496223 669981 724451 800709 841771 921557 979203 1018563 1170267 1345409 1487031 1488669 1563289 2173353 2284807 2525313 2764671 2903251 3469739 4036227 4243213 4689867 5071157 6450899 6854421 8709753 9417863 10409217 10943023 12729639 15213471 15993649 19352697 20322757 28253589 29702491 32829069 47980947 55161769 60968271 65925041 89107473 142259299 165485307 197775123 207917437 386132383 426777897 623752311 1158397149 2702926681 8108780043