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15631214660053 = 139112454781727
BaseRepresentation
bin1110001101110110110011…
…1111110100100111010101
32001100022220020002110110021
43203131230333310213111
54022100211423110203
653124514134225141
73202214033240326
oct343355477644725
961308806073407
1015631214660053
114a87185197193
1219055261b51b1
1389502ba9a225
143c07aa62c44d
151c190ca905bd
hexe376cff49d5

15631214660053 has 4 divisors (see below), whose sum is σ = 15743669441920. Its totient is φ = 15518759878188.

The previous prime is 15631214660051. The next prime is 15631214660081. The reversal of 15631214660053 is 35006641213651.

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.

It is a cyclic number.

It is not a de Polignac number, because 15631214660053 - 21 = 15631214660051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15631214659991 and 15631214660009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15631214660051) 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, 56227390725 + ... + 56227391002.

It is an arithmetic number, because the mean of its divisors is an integer number (3935917360480).

Almost surely, 215631214660053 is an apocalyptic number.

It is an amenable number.

15631214660053 is a deficient number, since it is larger than the sum of its proper divisors (112454781867).

15631214660053 is a wasteful number, since it uses less digits than its factorization.

15631214660053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112454781866.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 15631214660053 in words is "fifteen trillion, six hundred thirty-one billion, two hundred fourteen million, six hundred sixty thousand, fifty-three".

Divisors: 1 139 112454781727 15631214660053