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18242254053 = 34251897263
BaseRepresentation
bin10000111111010100…
…101011010011100101
31202002100000112010000
4100333110223103211
5244330004112203
612214054451513
71214026413102
oct207724532345
952070015100
1018242254053
117811305521
123651363b99
13194949038a
14c50a8baa9
1571b7ac4a3
hex43f52b4e5

18242254053 has 20 divisors (see below), whose sum is σ = 27359373888. Its totient is φ = 12113037000.

The previous prime is 18242254049. The next prime is 18242254067. The reversal of 18242254053 is 35045224281.

18242254053 is a `hidden beast` number, since 1 + 8 + 24 + 225 + 405 + 3 = 666.

It is not a de Polignac number, because 18242254053 - 22 = 18242254049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18242253999 and 18242254017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18242254153) 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 19 ways as a sum of consecutive naturals, for example, 428301 + ... + 468962.

Almost surely, 218242254053 is an apocalyptic number.

It is an amenable number.

18242254053 is a deficient number, since it is larger than the sum of its proper divisors (9117119835).

18242254053 is an equidigital number, since it uses as much as digits as its factorization.

18242254053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897526 (or 897517 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 18242254053 in words is "eighteen billion, two hundred forty-two million, two hundred fifty-four thousand, fifty-three".

Divisors: 1 3 9 27 81 251 753 2259 6777 20331 897263 2691789 8075367 24226101 72678303 225213013 675639039 2026917117 6080751351 18242254053