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11812747474960 = 245314763204627
BaseRepresentation
bin1010101111100101111010…
…0111011111100000010000
31112211021202200102020112021
42223321132213133200100
53022020001323144320
641042411250341224
72326304615553355
oct253713647374020
945737680366467
1011812747474960
113844837aa0283
1213a948128a814
13678c25357603
142cba508d062c
15157423b6adaa
hexabe5e9df810

11812747474960 has 40 divisors (see below), whose sum is σ = 28350593945856. Its totient is φ = 4572676440960.

The previous prime is 11812747474907. The next prime is 11812747474999. The reversal of 11812747474960 is 6947474721811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2381599834 + ... + 2381604793.

Almost surely, 211812747474960 is an apocalyptic number.

11812747474960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11812747474960 is an abundant number, since it is smaller than the sum of its proper divisors (16537846470896).

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

11812747474960 is a wasteful number, since it uses less digits than its factorization.

11812747474960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763204671 (or 4763204665 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 61.

The spelling of 11812747474960 in words is "eleven trillion, eight hundred twelve billion, seven hundred forty-seven million, four hundred seventy-four thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 4763204627 9526409254 19052818508 23816023135 38105637016 47632046270 76211274032 95264092540 147659343437 190528185080 295318686874 381056370160 590637373748 738296717185 1181274747496 1476593434370 2362549494992 2953186868740 5906373737480 11812747474960