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18829564201 = 72689937743
BaseRepresentation
bin10001100010010101…
…000101100100101001
31210121021010222011201
4101202111011210221
5302030332023301
612352234524201
71234420440430
oct214225054451
953537128151
1018829564201
117a92886308
123795b96661
131a11064c86
14ca8a90117
15753120201
hex462545929

18829564201 has 4 divisors (see below), whose sum is σ = 21519501952. Its totient is φ = 16139626452.

The previous prime is 18829564153. The next prime is 18829564213. The reversal of 18829564201 is 10246592881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18829564201 - 27 = 18829564073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18829564801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344968865 + ... + 1344968878.

It is an arithmetic number, because the mean of its divisors is an integer number (5379875488).

Almost surely, 218829564201 is an apocalyptic number.

18829564201 is the 79225-th hex number.

It is an amenable number.

18829564201 is a deficient number, since it is larger than the sum of its proper divisors (2689937751).

18829564201 is an equidigital number, since it uses as much as digits as its factorization.

18829564201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689937750.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 18829564201 in words is "eighteen billion, eight hundred twenty-nine million, five hundred sixty-four thousand, two hundred one".

Divisors: 1 7 2689937743 18829564201