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18032817053 = 59799374129
BaseRepresentation
bin10000110010110101…
…101111001110011101
31201112201221000120002
4100302311233032131
5243412400121203
612141213504045
71205604262436
oct206265571635
951481830502
1018032817053
117714067399
1235b31a2025
131914c80864
14c30d3048d
157081dbd88
hex432d6f39d

18032817053 has 16 divisors (see below), whose sum is σ = 18594912000. Its totient is φ = 17479867392.

The previous prime is 18032817037. The next prime is 18032817059. The reversal of 18032817053 is 35071823081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18032817053 - 24 = 18032817037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18032816998 and 18032817016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18032817059) 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, 4365293 + ... + 4369421.

It is an arithmetic number, because the mean of its divisors is an integer number (1162182000).

Almost surely, 218032817053 is an apocalyptic number.

It is an amenable number.

18032817053 is a deficient number, since it is larger than the sum of its proper divisors (562094947).

18032817053 is an equidigital number, since it uses as much as digits as its factorization.

18032817053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 18032817053 in words is "eighteen billion, thirty-two million, eight hundred seventeen thousand, fifty-three".

Divisors: 1 59 79 937 4129 4661 55283 74023 243611 326191 3868873 4367357 19245269 228263507 305640967 18032817053