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70861012899 = 3107220750819
BaseRepresentation
bin100000111111110100…
…1010011111110100011
320202220102111102112020
41001333221103332203
52130110404403044
652315245232523
75056000446225
oct1017751237643
9222812442466
1070861012899
1128063215886
1211897262743
1368b3940541
143603104415
151c9aedaa19
hex107fa53fa3

70861012899 has 8 divisors (see below), whose sum is σ = 95364354240. Its totient is φ = 46799173416.

The previous prime is 70861012861. The next prime is 70861012931. The reversal of 70861012899 is 99821016807.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70861012899 - 215 = 70860980131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70861012199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110375089 + ... + 110375730.

It is an arithmetic number, because the mean of its divisors is an integer number (11920544280).

Almost surely, 270861012899 is an apocalyptic number.

70861012899 is a deficient number, since it is larger than the sum of its proper divisors (24503341341).

70861012899 is a wasteful number, since it uses less digits than its factorization.

70861012899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220750929.

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 70861012899 in words is "seventy billion, eight hundred sixty-one million, twelve thousand, eight hundred ninety-nine".

Divisors: 1 3 107 321 220750819 662252457 23620337633 70861012899