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63689302131 = 3713234799401
BaseRepresentation
bin111011010100001011…
…011010000001110011
320002101121122202211220
4323110023122001303
52020413430132011
645131454440123
74413165064410
oct732413320163
9202347582756
1063689302131
1125012a50394
1210415503043
13600cba66c0
14312284b107
1519cb5a4506
hexed42da073

63689302131 has 32 divisors (see below), whose sum is σ = 104561361408. Its totient is φ = 33579705600.

The previous prime is 63689302111. The next prime is 63689302141. The reversal of 63689302131 is 13120398636.

63689302131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63689302131 - 210 = 63689301107 is a prime.

It is a super-2 number, since 2×636893021312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63689302111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 591031 + ... + 690431.

It is an arithmetic number, because the mean of its divisors is an integer number (3267542544).

Almost surely, 263689302131 is an apocalyptic number.

63689302131 is a deficient number, since it is larger than the sum of its proper divisors (40872059277).

63689302131 is a wasteful number, since it uses less digits than its factorization.

63689302131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101771.

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 63689302131 in words is "sixty-three billion, six hundred eighty-nine million, three hundred two thousand, one hundred thirty-one".

Divisors: 1 3 7 13 21 39 91 273 2347 7041 16429 30511 49287 91533 99401 213577 298203 640731 695807 1292213 2087421 3876639 9045491 27136473 233294147 699882441 1633059029 3032823911 4899177087 9098471733 21229767377 63689302131