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18682427007 = 34353965173
BaseRepresentation
bin10001011001100011…
…110011011001111111
31210020000021121220000
4101121203303121333
5301230200131012
612325501125343
71230653003136
oct213143633177
953200247800
1018682427007
117a17819a22
123754859853
1319b972914a
14c9330c91d
15745258ddc
hex4598f367f

18682427007 has 20 divisors (see below), whose sum is σ = 27916631160. Its totient is φ = 12451240944.

The previous prime is 18682427003. The next prime is 18682427011. The reversal of 18682427007 is 70072428681.

It is an interprime number because it is at equal distance from previous prime (18682427003) and next prime (18682427011).

It is not a de Polignac number, because 18682427007 - 22 = 18682427003 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18682427003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 254073 + ... + 319245.

It is an arithmetic number, because the mean of its divisors is an integer number (1395831558).

Almost surely, 218682427007 is an apocalyptic number.

18682427007 is a deficient number, since it is larger than the sum of its proper divisors (9234204153).

18682427007 is an equidigital number, since it uses as much as digits as its factorization.

18682427007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68724 (or 68715 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 18682427007 in words is "eighteen billion, six hundred eighty-two million, four hundred twenty-seven thousand, seven".

Divisors: 1 3 9 27 81 3539 10617 31851 65173 95553 195519 286659 586557 1759671 5279013 230647247 691941741 2075825223 6227475669 18682427007