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56326109490 = 23257881101483
BaseRepresentation
bin110100011101010011…
…000011100100110010
312101101110111211102100
4310131103003210302
51410323441000430
641513104001230
74032546013440
oct643523034462
9171343454370
1056326109490
1121984690812
12aabb600216
135408578791
142a2498bb90
1516e9e47960
hexd1d4c3932

56326109490 has 96 divisors (see below), whose sum is σ = 167560638336. Its totient is φ = 12859799040.

The previous prime is 56326109479. The next prime is 56326109491. The reversal of 56326109490 is 9490162365.

56326109490 is a `hidden beast` number, since 5 + 632 + 6 + 1 + 0 + 9 + 4 + 9 + 0 = 666.

It is a super-2 number, since 2×563261094902 (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (56326109491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 504289 + ... + 605771.

It is an arithmetic number, because the mean of its divisors is an integer number (1745423316).

Almost surely, 256326109490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56326109490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83780319168).

56326109490 is an abundant number, since it is smaller than the sum of its proper divisors (111234528846).

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

56326109490 is a wasteful number, since it uses less digits than its factorization.

56326109490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102384 (or 102381 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 56326109490 in words is "fifty-six billion, three hundred twenty-six million, one hundred nine thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 881 1762 2643 4405 5286 6167 7929 8810 12334 13215 15858 18501 26430 30835 37002 39645 55503 61670 79290 92505 101483 111006 185010 202966 277515 304449 507415 555030 608898 710381 913347 1014830 1420762 1522245 1826694 2131143 3044490 3551905 4262286 4566735 6393429 7103810 9133470 10655715 12786858 21311430 31967145 63934290 89406523 178813046 268219569 447032615 536439138 625845661 804658707 894065230 1251691322 1341097845 1609317414 1877536983 2682195690 3129228305 3755073966 4023293535 5632610949 6258456610 8046587070 9387684915 11265221898 18775369830 28163054745 56326109490