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70397142805 = 5111279948051
BaseRepresentation
bin100000110001111111…
…1110010011100010101
320201201002122101101101
41001203333302130111
52123133132032210
652201235030101
75041335561253
oct1014377623425
9221632571341
1070397142805
1127945396370
1211787a3b331
13683b7c85b2
14359b6755d3
151c7040ca3a
hex1063ff2715

70397142805 has 8 divisors (see below), whose sum is σ = 92156259744. Its totient is φ = 51197922000.

The previous prime is 70397142787. The next prime is 70397142811. The reversal of 70397142805 is 50824179307.

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

It is not a de Polignac number, because 70397142805 - 25 = 70397142773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639973971 + ... + 639974080.

It is an arithmetic number, because the mean of its divisors is an integer number (11519532468).

Almost surely, 270397142805 is an apocalyptic number.

It is an amenable number.

70397142805 is a deficient number, since it is larger than the sum of its proper divisors (21759116939).

70397142805 is a wasteful number, since it uses less digits than its factorization.

70397142805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279948067.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 70397142805 in words is "seventy billion, three hundred ninety-seven million, one hundred forty-two thousand, eight hundred five".

Divisors: 1 5 11 55 1279948051 6399740255 14079428561 70397142805