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63968048131 = 134920619087
BaseRepresentation
bin111011100100110010…
…101111010000000011
320010010001011112110211
4323210302233100003
52022001310020011
645215253134551
74423121303101
oct734462572003
9203101145424
1063968048131
1125146328389
121049292a457
136055872370
14314b88ac71
1519e5cb5b21
hexee4caf403

63968048131 has 4 divisors (see below), whose sum is σ = 68888667232. Its totient is φ = 59047429032.

The previous prime is 63968048101. The next prime is 63968048149. The reversal of 63968048131 is 13184086936.

63968048131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63968048131 - 27 = 63968048003 is a prime.

It is a super-2 number, since 2×639680481312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63968048101) 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, 2460309531 + ... + 2460309556.

It is an arithmetic number, because the mean of its divisors is an integer number (17222166808).

Almost surely, 263968048131 is an apocalyptic number.

63968048131 is a deficient number, since it is larger than the sum of its proper divisors (4920619101).

63968048131 is a wasteful number, since it uses less digits than its factorization.

63968048131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920619100.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 63968048131 in words is "sixty-three billion, nine hundred sixty-eight million, forty-eight thousand, one hundred thirty-one".

Divisors: 1 13 4920619087 63968048131