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20342725351 = 1317769119699
BaseRepresentation
bin10010111100100001…
…010101101011100111
31221111201102112001021
4102330201111223213
5313130214202401
613202331112011
71320053212114
oct227441255347
957451375037
1020342725351
118699a35713
123b388a2607
131bc26b48c0
14dada1b90b
157e0db92a1
hex4bc855ae7

20342725351 has 16 divisors (see below), whose sum is σ = 23226588000. Its totient is φ = 17650188288.

The previous prime is 20342725289. The next prime is 20342725367. The reversal of 20342725351 is 15352724302.

It is a cyclic number.

It is not a de Polignac number, because 20342725351 - 219 = 20342201063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342725451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110100 + ... + 229798.

It is an arithmetic number, because the mean of its divisors is an integer number (1451661750).

Almost surely, 220342725351 is an apocalyptic number.

20342725351 is a deficient number, since it is larger than the sum of its proper divisors (2883862649).

20342725351 is a wasteful number, since it uses less digits than its factorization.

20342725351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120498.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 20342725351 in words is "twenty billion, three hundred forty-two million, seven hundred twenty-five thousand, three hundred fifty-one".

Divisors: 1 13 17 221 769 9997 13073 119699 169949 1556087 2034883 26453479 92048531 1196630903 1564825027 20342725351