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18441110140 = 225922055507
BaseRepresentation
bin10001001011001011…
…010000001001111100
31202121012012110101021
4101023023100021330
5300231411011030
612245520553524
71221662564335
oct211313201174
952535173337
1018441110140
117903586aa2
1236a7a828a4
13197b736abb
14c6d25328c
1572de8c97a
hex44b2d027c

18441110140 has 12 divisors (see below), whose sum is σ = 38726331336. Its totient is φ = 7376444048.

The previous prime is 18441110119. The next prime is 18441110147. The reversal of 18441110140 is 4101114481.

It is a super-2 number, since 2×184411101402 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18441110147) 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, 461027734 + ... + 461027773.

It is an arithmetic number, because the mean of its divisors is an integer number (3227194278).

Almost surely, 218441110140 is an apocalyptic number.

18441110140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18441110140 is an abundant number, since it is smaller than the sum of its proper divisors (20285221196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18441110140 is a wasteful number, since it uses less digits than its factorization.

18441110140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922055516 (or 922055514 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The spelling of 18441110140 in words is "eighteen billion, four hundred forty-one million, one hundred ten thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 922055507 1844111014 3688222028 4610277535 9220555070 18441110140