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70516793 = 611156013
BaseRepresentation
bin1000011010000…
…00000000111001
311220200121212002
410031000000321
5121023014133
610555230345
71514245214
oct415000071
9156617762
1070516793
1136894346
121b7483b5
13117bcb19
14951877b
1562cdce8
hex4340039

70516793 has 4 divisors (see below), whose sum is σ = 71672868. Its totient is φ = 69360720.

The previous prime is 70516729. The next prime is 70516801. The reversal of 70516793 is 39761507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39761507 = 120133107.

It can be written as a sum of positive squares in 2 ways, for example, as 4631104 + 65885689 = 2152^2 + 8117^2 .

It is a cyclic number.

It is not a de Polignac number, because 70516793 - 26 = 70516729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70536793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577946 + ... + 578067.

It is an arithmetic number, because the mean of its divisors is an integer number (17918217).

Almost surely, 270516793 is an apocalyptic number.

It is an amenable number.

70516793 is a deficient number, since it is larger than the sum of its proper divisors (1156075).

70516793 is a wasteful number, since it uses less digits than its factorization.

70516793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156074.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 70516793 is about 8397.4277609277. The cubic root of 70516793 is about 413.1402592164.

The spelling of 70516793 in words is "seventy million, five hundred sixteen thousand, seven hundred ninety-three".

Divisors: 1 61 1156013 70516793