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18630000907 = 72661428701
BaseRepresentation
bin10001010110011011…
…110100000100001011
31210002100122002210121
4101112123310010023
5301123240012112
612320345324111
71226445252310
oct212633640413
953070562717
1018630000907
1179a0171471
12373b196637
1319ab90169b
14c8a382d07
15740850407
hex4566f410b

18630000907 has 4 divisors (see below), whose sum is σ = 21291429616. Its totient is φ = 15968572200.

The previous prime is 18630000899. The next prime is 18630000937. The reversal of 18630000907 is 70900003681.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 18630000907 - 23 = 18630000899 is a prime.

It is a pancake number, because a pancake can be divided into 18630000907 parts by 193028 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18630000937) 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, 1330714344 + ... + 1330714357.

It is an arithmetic number, because the mean of its divisors is an integer number (5322857404).

Almost surely, 218630000907 is an apocalyptic number.

18630000907 is a deficient number, since it is larger than the sum of its proper divisors (2661428709).

18630000907 is an equidigital number, since it uses as much as digits as its factorization.

18630000907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661428708.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 18630000907 in words is "eighteen billion, six hundred thirty million, nine hundred seven", and thus it is an aban number.

Divisors: 1 7 2661428701 18630000907