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70868211434640 = 243251631303463433
BaseRepresentation
bin10000000111010001001010…
…100100011000010010010000
3100021220221020111121102020100
4100013101022210120102100
533242101044111402030
6410420223515412400
720633026226043324
oct2007211244302220
9307827214542210
1070868211434640
11206430489082a4
127b46898754100
133070ac76b2509
14137007b065984
1582d6a139d360
hex40744a918490

70868211434640 has 240 divisors, whose sum is σ = 239643486156672. Its totient is φ = 18767794784256.

The previous prime is 70868211434539. The next prime is 70868211434659. The reversal of 70868211434640 is 4643411286807.

70868211434640 is a `hidden beast` number, since 7 + 0 + 8 + 68 + 2 + 114 + 3 + 464 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152688364 + ... + 153151796.

Almost surely, 270868211434640 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 70868211434640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119821743078336).

70868211434640 is an abundant number, since it is smaller than the sum of its proper divisors (168775274722032).

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

70868211434640 is a wasteful number, since it uses less digits than its factorization.

70868211434640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464918 (or 464909 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 70868211434640 in words is "seventy trillion, eight hundred sixty-eight billion, two hundred eleven million, four hundred thirty-four thousand, six hundred forty".