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12047120885520 = 24325741151386093
BaseRepresentation
bin1010111101001111000001…
…0111000110011100010000
31120122200201120100002211200
42233103300113012130100
53034340000421314040
641342212042111200
72352242612642340
oct257236027063420
946580646302750
1012047120885520
1139251787435a6
1214269904ab500
13695066b22076
142d9125bb2d20
1515d58eb4e630
hexaf4f05c6710

12047120885520 has 480 divisors, whose sum is σ = 47679557313024. Its totient is φ = 2668667904000.

The previous prime is 12047120885519. The next prime is 12047120885531. The reversal of 12047120885520 is 2558802174021.

12047120885520 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 7 + 12 + 0 + 88 + 552 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31009594 + ... + 31395686.

Almost surely, 212047120885520 is an apocalyptic number.

12047120885520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12047120885520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23839778656512).

12047120885520 is an abundant number, since it is smaller than the sum of its proper divisors (35632436427504).

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

12047120885520 is a wasteful number, since it uses less digits than its factorization.

12047120885520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386311 (or 386302 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 12047120885520 in words is "twelve trillion, forty-seven billion, one hundred twenty million, eight hundred eighty-five thousand, five hundred twenty".