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18301764140 = 2251183189837
BaseRepresentation
bin10001000010110111…
…101100001000101100
31202020110222221121022
4101002313230020230
5244440222423030
612224022153312
71215351266642
oct210267541054
952213887538
1018301764140
117841961310
123669282838
1319588c834a
14c5893d192
15721b14de5
hex442dec22c

18301764140 has 24 divisors (see below), whose sum is σ = 41927678352. Its totient is φ = 6655186880.

The previous prime is 18301764083. The next prime is 18301764197. The reversal of 18301764140 is 4146710381.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18301764083) and next prime (18301764197).

It is a self number, because there is not a number n which added to its sum of digits gives 18301764140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41594699 + ... + 41595138.

It is an arithmetic number, because the mean of its divisors is an integer number (1746986598).

Almost surely, 218301764140 is an apocalyptic number.

18301764140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18301764140 is an abundant number, since it is smaller than the sum of its proper divisors (23625914212).

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

18301764140 is a wasteful number, since it uses less digits than its factorization.

18301764140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83189857 (or 83189855 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 18301764140 in words is "eighteen billion, three hundred one million, seven hundred sixty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 83189837 166379674 332759348 415949185 831898370 915088207 1663796740 1830176414 3660352828 4575441035 9150882070 18301764140