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20346665524105 = 521531890075757
BaseRepresentation
bin1001010000001010100111…
…10001010101101110001001
32200001010022002210210000111
410220011103301111232021
510131324432333232410
6111135043515234321
74166666224245034
oct450052361255611
980033262723014
1020346665524105
116534a77285288
1223473a11489a1
13b478b40bb9ab
14504ad8cdc01b
152543e42c6b8a
hex128153c55b89

20346665524105 has 8 divisors (see below), whose sum is σ = 24427339096392. Its totient is φ = 16269772107648.

The previous prime is 20346665524067. The next prime is 20346665524151. The reversal of 20346665524105 is 50142556664302.

It can be written as a sum of positive squares in 4 ways, for example, as 596214078201 + 19750451445904 = 772149^2 + 4444148^2 .

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 20346665524105 - 237 = 20209226570633 is a prime.

It is a Duffinian number.

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, 945027114 + ... + 945048643.

It is an arithmetic number, because the mean of its divisors is an integer number (3053417387049).

Almost surely, 220346665524105 is an apocalyptic number.

It is an amenable number.

20346665524105 is a deficient number, since it is larger than the sum of its proper divisors (4080673572287).

20346665524105 is a wasteful number, since it uses less digits than its factorization.

20346665524105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890077915.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 20346665524105 in words is "twenty trillion, three hundred forty-six billion, six hundred sixty-five million, five hundred twenty-four thousand, one hundred five".

Divisors: 1 5 2153 10765 1890075757 9450378785 4069333104821 20346665524105