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20110337236457 = 137993193537973
BaseRepresentation
bin1001001001010010011011…
…00000011101110111101001
32122012112021222102212110222
410210221031200131313221
510113441432313031312
6110434321132015425
74143631622036666
oct444511540356751
978175258385428
1020110337236457
116453823104966
122309627301575
13b2b520618430
144d74ba148a6d
1524d1b1895672
hex124a4d81dde9

20110337236457 has 8 divisors (see below), whose sum is σ = 21659995898184. Its totient is φ = 18561065666688.

The previous prime is 20110337236361. The next prime is 20110337236547. The reversal of 20110337236457 is 75463273301102.

It can be written as a sum of positive squares in 4 ways, for example, as 276238541056 + 19834098695401 = 525584^2 + 4453549^2 .

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 20110337236457 - 224 = 20110320459241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110337232457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96665078 + ... + 96872895.

It is an arithmetic number, because the mean of its divisors is an integer number (2707499487273).

Almost surely, 220110337236457 is an apocalyptic number.

It is an amenable number.

20110337236457 is a deficient number, since it is larger than the sum of its proper divisors (1549658661727).

20110337236457 is a wasteful number, since it uses less digits than its factorization.

20110337236457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193545979.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 20110337236457 in words is "twenty trillion, one hundred ten billion, three hundred thirty-seven million, two hundred thirty-six thousand, four hundred fifty-seven".

Divisors: 1 13 7993 103909 193537973 2515993649 1546949018189 20110337236457