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70048352657 = 193686755403
BaseRepresentation
bin100000100111100110…
…1010000100110010001
320200210210100000020202
41001033031100212101
52121424334241112
652102455144545
75026602113333
oct1011715204621
9220723300222
1070048352657
1127786518148
12116ab075155
1367b4476caa
143567201453
151c4e9b26c2
hex104f350991

70048352657 has 4 divisors (see below), whose sum is σ = 73735108080. Its totient is φ = 66361597236.

The previous prime is 70048352653. The next prime is 70048352659. The reversal of 70048352657 is 75625384007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75625384007 = 611312371239.

It is not a de Polignac number, because 70048352657 - 22 = 70048352653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70048352653) 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, 1843377683 + ... + 1843377720.

It is an arithmetic number, because the mean of its divisors is an integer number (18433777020).

Almost surely, 270048352657 is an apocalyptic number.

It is an amenable number.

70048352657 is a deficient number, since it is larger than the sum of its proper divisors (3686755423).

70048352657 is a wasteful number, since it uses less digits than its factorization.

70048352657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686755422.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 70048352657 in words is "seventy billion, forty-eight million, three hundred fifty-two thousand, six hundred fifty-seven".

Divisors: 1 19 3686755403 70048352657