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70995071808 = 2634107149859
BaseRepresentation
bin100001000011110100…
…0101101001101000000
320210020202202022210000
41002013220231031000
52130344214244213
652340434440000
75062216103433
oct1020750551500
9223222668700
1070995071808
112812195a271
1211914133000
13690564a63b
143616c3d81a
151ca7b6bc73
hex1087a2d340

70995071808 has 280 divisors, whose sum is σ = 214093044000. Its totient is φ = 23259405312.

The previous prime is 70995071743. The next prime is 70995071831. The reversal of 70995071808 is 80817059907.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 82648083 + ... + 82648941.

Almost surely, 270995071808 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 70995071808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107046522000).

70995071808 is an abundant number, since it is smaller than the sum of its proper divisors (143097972192).

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

70995071808 is a wasteful number, since it uses less digits than its factorization.

70995071808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The spelling of 70995071808 in words is "seventy billion, nine hundred ninety-five million, seventy-one thousand, eight hundred eight".