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53631345686688 = 2534731131176903
BaseRepresentation
bin11000011000111000001010…
…10011101111100010100000
321000220002212200201110120000
430030130011103233202200
524012143443443433223
6310021522230020000
714203510512444000
oct1414340523574240
9230802780643500
1053631345686688
11160a7a20523750
1260221451a7600
1323c054ccb8483
14d35ab1804000
1563011b062543
hex30c7054ef8a0

53631345686688 has 960 divisors, whose sum is σ = 207135619891200. Its totient is φ = 13480781529600.

The previous prime is 53631345686687. The next prime is 53631345686689. The reversal of 53631345686688 is 88668654313635.

53631345686688 is a `hidden beast` number, since 5 + 3 + 6 + 3 + 13 + 456 + 86 + 6 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (53631345686687) and next prime (53631345686689).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (53631345686687) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 303079645 + ... + 303256547.

It is an arithmetic number, because the mean of its divisors is an integer number (215766270720).

Almost surely, 253631345686688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53631345686688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103567809945600).

53631345686688 is an abundant number, since it is smaller than the sum of its proper divisors (153504274204512).

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

53631345686688 is a wasteful number, since it uses less digits than its factorization.

53631345686688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176988 (or 176957 counting only the distinct ones).

The product of its digits is 1791590400, while the sum is 72.

The spelling of 53631345686688 in words is "fifty-three trillion, six hundred thirty-one billion, three hundred forty-five million, six hundred eighty-six thousand, six hundred eighty-eight".