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13957395653 = 126591102567
BaseRepresentation
bin11001111111110110…
…01111010011000101
31100000201022011101202
430333323033103011
5212041043130103
610224551232245
71002606622415
oct147773172305
940021264352
1013957395653
115a12649a33
122856378685
131415842ac6
14965986645
1556a519988
hex33fecf4c5

13957395653 has 4 divisors (see below), whose sum is σ = 13958510880. Its totient is φ = 13956280428.

The previous prime is 13957395643. The next prime is 13957395679. The reversal of 13957395653 is 35659375931.

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: 35659375931 = 157227129783.

It is a cyclic number.

It is not a de Polignac number, because 13957395653 - 212 = 13957391557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13957395643) 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, 538625 + ... + 563942.

It is an arithmetic number, because the mean of its divisors is an integer number (3489627720).

Almost surely, 213957395653 is an apocalyptic number.

It is an amenable number.

13957395653 is a deficient number, since it is larger than the sum of its proper divisors (1115227).

13957395653 is a wasteful number, since it uses less digits than its factorization.

13957395653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115226.

The product of its digits is 11481750, while the sum is 56.

The spelling of 13957395653 in words is "thirteen billion, nine hundred fifty-seven million, three hundred ninety-five thousand, six hundred fifty-three".

Divisors: 1 12659 1102567 13957395653