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52090903949 = 779359262387
BaseRepresentation
bin110000100000110111…
…000001110110001101
311222110022020002121212
4300200313001312031
51323140232411244
635532532504205
73522601243430
oct604067016615
9158408202555
1052090903949
1120100a59147
12a11917b065
134bb1cc45b6
1427422cd817
15154d211d9e
hexc20dc1d8d

52090903949 has 16 divisors (see below), whose sum is σ = 60454195200. Its totient is φ = 43961199984.

The previous prime is 52090903939. The next prime is 52090903961. The reversal of 52090903949 is 94930909025.

It is a cyclic number.

It is not a de Polignac number, because 52090903949 - 24 = 52090903933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52090903897 and 52090903906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52090903939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67334 + ... + 329720.

It is an arithmetic number, because the mean of its divisors is an integer number (3778387200).

Almost surely, 252090903949 is an apocalyptic number.

It is an amenable number.

52090903949 is a deficient number, since it is larger than the sum of its proper divisors (8363291251).

52090903949 is a wasteful number, since it uses less digits than its factorization.

52090903949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262832.

The product of its (nonzero) digits is 787320, while the sum is 50.

The spelling of 52090903949 in words is "fifty-two billion, ninety million, nine hundred three thousand, nine hundred forty-nine".

Divisors: 1 7 79 359 553 2513 28361 198527 262387 1836709 20728573 94196933 145100011 659378531 7441557707 52090903949