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20013653426755 = 523942916717819
BaseRepresentation
bin1001000110011110010101…
…01101000000001001000011
32121212021201220210110010011
410203033022231000021003
510110400430234124010
6110322051230245351
74133636663154532
oct443171255001103
977767656713104
1020013653426755
1164168196716aa
1222b2944056857
13b22382b69391
144d29476ba319
1524a90385aa8a
hex1233cab40243

20013653426755 has 8 divisors (see below), whose sum is σ = 24016485855600. Its totient is φ = 16010854912416.

The previous prime is 20013653426749. The next prime is 20013653426843. The reversal of 20013653426755 is 55762435631002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20013653426755 - 223 = 20013645038147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20013653426699 and 20013653426708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7161765 + ... + 9556054.

It is an arithmetic number, because the mean of its divisors is an integer number (3002060731950).

Almost surely, 220013653426755 is an apocalyptic number.

20013653426755 is a deficient number, since it is larger than the sum of its proper divisors (4002832428845).

20013653426755 is a wasteful number, since it uses less digits than its factorization.

20013653426755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16957253.

The product of its (nonzero) digits is 4536000, while the sum is 49.

The spelling of 20013653426755 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred twenty-six thousand, seven hundred fifty-five".

Divisors: 1 5 239429 1197145 16717819 83589095 4002730685351 20013653426755