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18028446010 = 2511315954377
BaseRepresentation
bin10000110010100101…
…000100000100111010
31201112102200221121121
4100302211010010322
5243410240233020
612140540055454
71205522156041
oct206245040472
951472627547
1018028446010
117711651363
1235b183458a
1319140b0143
14c30513558
15707b26baa
hex43294413a

18028446010 has 16 divisors (see below), whose sum is σ = 32738383656. Its totient is φ = 7147560448.

The previous prime is 18028445999. The next prime is 18028446031. The reversal of 18028446010 is 1064482081.

It can be written as a sum of positive squares in 4 ways, for example, as 13572483001 + 4455963009 = 116501^2 + 66753^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7976059 + ... + 7978318.

Almost surely, 218028446010 is an apocalyptic number.

18028446010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18028446010 is a deficient number, since it is larger than the sum of its proper divisors (14709937646).

18028446010 is a wasteful number, since it uses less digits than its factorization.

18028446010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15954497.

The product of its (nonzero) digits is 12288, while the sum is 34.

The spelling of 18028446010 in words is "eighteen billion, twenty-eight million, four hundred forty-six thousand, ten".

Divisors: 1 2 5 10 113 226 565 1130 15954377 31908754 79771885 159543770 1802844601 3605689202 9014223005 18028446010