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18953488206 = 23237270710513
BaseRepresentation
bin10001101001101101…
…110100011101001110
31210220220022221221200
4101221231310131032
5302304043110311
612412423010330
71240453664052
oct215155643516
953826287850
1018953488206
118046828244
12380b5999a6
131a30933ca3
14cbb30bc62
1575de4d556
hex469b7474e

18953488206 has 48 divisors (see below), whose sum is σ = 42195373584. Its totient is φ = 6144221952.

The previous prime is 18953488193. The next prime is 18953488237. The reversal of 18953488206 is 60288435981.

18953488206 is a `hidden beast` number, since 1 + 8 + 9 + 534 + 88 + 20 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1797606 + ... + 1808118.

It is an arithmetic number, because the mean of its divisors is an integer number (879070283).

Almost surely, 218953488206 is an apocalyptic number.

18953488206 is an abundant number, since it is smaller than the sum of its proper divisors (23241885378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18953488206 is a wasteful number, since it uses less digits than its factorization.

18953488206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13265 (or 13262 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 18953488206 in words is "eighteen billion, nine hundred fifty-three million, four hundred eighty-eight thousand, two hundred six".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 2707 5414 8121 10513 16242 21026 24363 31539 48726 63078 94617 100159 189234 200318 300477 388981 600954 777962 901431 1166943 1802862 2333886 3500829 7001658 28458691 56917382 85376073 170752146 256128219 512256438 1052971567 2105943134 3158914701 6317829402 9476744103 18953488206