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70647398914 = 235323699457
BaseRepresentation
bin100000111001011101…
…0011100001000000010
320202100112112201020011
41001302322130020002
52124141213231124
652242134535134
75050464661021
oct1016272341002
9222315481204
1070647398914
1127a636844a4
12118378074aa
13687b5ca731
1435c29ba8b8
151c87392994
hex1072e9c202

70647398914 has 4 divisors (see below), whose sum is σ = 105971098374. Its totient is φ = 35323699456.

The previous prime is 70647398893. The next prime is 70647398917. The reversal of 70647398914 is 41989374607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41989374607 = 166925158403.

It can be written as a sum of positive squares in only one way, i.e., 64321582689 + 6325816225 = 253617^2 + 79535^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (70647398917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17661849727 + ... + 17661849730.

Almost surely, 270647398914 is an apocalyptic number.

70647398914 is a deficient number, since it is larger than the sum of its proper divisors (35323699460).

70647398914 is a wasteful number, since it uses less digits than its factorization.

70647398914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35323699459.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 70647398914 in words is "seventy billion, six hundred forty-seven million, three hundred ninety-eight thousand, nine hundred fourteen".

Divisors: 1 2 35323699457 70647398914