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6204780081 = 3223238912547
BaseRepresentation
bin1011100011101010…
…10110111000110001
3121000102101111010200
411301311112320301
5100201410430311
62503405545413
7306521521563
oct56165267061
917012344120
106204780081
1126a4489125
121251b75269
1377b637a06
1442c0b7333
15264ad8556
hex171d56e31

6204780081 has 24 divisors (see below), whose sum is σ = 9356792640. Its totient is φ = 3954699936.

The previous prime is 6204780079. The next prime is 6204780137. The reversal of 6204780081 is 1800874026.

It is not a de Polignac number, because 6204780081 - 21 = 6204780079 is a prime.

It is a super-2 number, since 2×62047800812 = 76998591707148733122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6204780181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488250 + ... + 500796.

It is an arithmetic number, because the mean of its divisors is an integer number (389866360).

Almost surely, 26204780081 is an apocalyptic number.

It is an amenable number.

6204780081 is a deficient number, since it is larger than the sum of its proper divisors (3152012559).

6204780081 is a wasteful number, since it uses less digits than its factorization.

6204780081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14965 (or 14962 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 6204780081 is about 78770.4264365758. The cubic root of 6204780081 is about 1837.5625492521.

The spelling of 6204780081 in words is "six billion, two hundred four million, seven hundred eighty thousand, eighty-one".

Divisors: 1 3 9 23 69 207 2389 7167 12547 21501 37641 54947 112923 164841 288581 494523 865743 2597229 29974783 89924349 269773047 689420009 2068260027 6204780081