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631290741984000 = 28375371288643
BaseRepresentation
bin1000111110001001111101010…
…0011011010000101100000000
310001210012210202020100110000000
42033202133110123100230000
51130221031414421442000
610114350544020000000
7246654152042540550
oct21742372433205400
93053183666313000
10631290741984000
1117316a99a15279a
125a978460230000
13211335ccca4b17
14b1c68c63c7160
154ceb4c3226000
hex23e27d46d0b00

631290741984000 has 1152 divisors, whose sum is σ = 2695518303528960. Its totient is φ = 144294914764800.

The previous prime is 631290741983953. The next prime is 631290741984031. The reversal of 631290741984000 is 489147092136.

631290741984000 is a `hidden beast` number, since 63 + 1 + 2 + 90 + 7 + 4 + 1 + 98 + 400 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 489243679 + ... + 490532321.

It is an arithmetic number, because the mean of its divisors is an integer number (2339859638480).

Almost surely, 2631290741984000 is an apocalyptic number.

631290741984000 is a gapful number since it is divisible by the number (60) 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 631290741984000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347759151764480).

631290741984000 is an abundant number, since it is smaller than the sum of its proper divisors (2064227561544960).

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

631290741984000 is an frugal number, since it uses more digits than its factorization.

631290741984000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288702 (or 1288660 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 631290741984000 in words is "six hundred thirty-one trillion, two hundred ninety billion, seven hundred forty-one million, nine hundred eighty-four thousand".