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20370565741 = 1719435327673
BaseRepresentation
bin10010111110001011…
…100010101001101101
31221120122210221212211
4102332023202221231
5313204331100431
613205203530421
71320541644331
oct227613425155
957518727784
1020370565741
1187037205a9
123b46089a11
131bc83b18c6
14db35c77c1
157e35682b1
hex4be2e2a6d

20370565741 has 32 divisors (see below), whose sum is σ = 23671232640. Its totient is φ = 17405466624.

The previous prime is 20370565727. The next prime is 20370565753. The reversal of 20370565741 is 14756507302.

It is a cyclic number.

It is not a de Polignac number, because 20370565741 - 213 = 20370557549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20370565694 and 20370565703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20370565781) 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 31 ways as a sum of consecutive naturals, for example, 722281 + ... + 749953.

It is an arithmetic number, because the mean of its divisors is an integer number (739726020).

Almost surely, 220370565741 is an apocalyptic number.

It is an amenable number.

20370565741 is a deficient number, since it is larger than the sum of its proper divisors (3300666899).

20370565741 is a wasteful number, since it uses less digits than its factorization.

20370565741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27805.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 20370565741 in words is "twenty billion, three hundred seventy million, five hundred sixty-five thousand, seven hundred forty-one".

Divisors: 1 17 19 43 53 323 731 817 901 1007 2279 13889 17119 27673 38743 43301 470441 525787 736117 1189939 1466669 8938379 20228963 22608841 24933373 27866711 63066767 384350297 473734087 1072135039 1198268573 20370565741