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20013653426754 = 23131139922509457
BaseRepresentation
bin1001000110011110010101…
…01101000000001001000010
32121212021201220210110010010
410203033022231000021002
510110400430234124004
6110322051230245350
74133636663154531
oct443171255001102
977767656713103
1020013653426754
1164168196716a9
1222b2944056856
13b22382b69390
144d29476ba318
1524a90385aa89
hex1233cab40242

20013653426754 has 32 divisors (see below), whose sum is σ = 43110113961600. Its totient is φ = 6157506707712.

The previous prime is 20013653426749. The next prime is 20013653426843. The reversal of 20013653426754 is 45762435631002.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10365607 + ... + 12143850.

It is an arithmetic number, because the mean of its divisors is an integer number (1347191061300).

Almost surely, 220013653426754 is an apocalyptic number.

20013653426754 is an abundant number, since it is smaller than the sum of its proper divisors (23096460534846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013653426754 is a wasteful number, since it uses less digits than its factorization.

20013653426754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22520874.

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 20013653426754 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred twenty-six thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 78 11399 22798 34197 68394 148187 296374 444561 889122 22509457 45018914 67528371 135056742 292622941 585245882 877868823 1755737646 256585300343 513170600686 769755901029 1539511802058 3335608904459 6671217808918 10006826713377 20013653426754