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18114233620 = 2257129387383
BaseRepresentation
bin10000110111101100…
…010100010100010100
31201202102010102002111
4100313230110110110
5244044220433440
612153242520404
71210613305510
oct206754242424
951672112074
1018114233620
11775601590a
123616506104
131928ab8942
14c3ba85140
157104204ea
hex437b14514

18114233620 has 24 divisors (see below), whose sum is σ = 43474161024. Its totient is φ = 6210594336.

The previous prime is 18114233611. The next prime is 18114233693. The reversal of 18114233620 is 2633241181.

It is a congruent number.

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, 64693552 + ... + 64693831.

It is an arithmetic number, because the mean of its divisors is an integer number (1811423376).

Almost surely, 218114233620 is an apocalyptic number.

18114233620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18114233620 is an abundant number, since it is smaller than the sum of its proper divisors (25359927404).

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

18114233620 is a wasteful number, since it uses less digits than its factorization.

18114233620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129387399 (or 129387397 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 18114233620 in words is "eighteen billion, one hundred fourteen million, two hundred thirty-three thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 129387383 258774766 517549532 646936915 905711681 1293873830 1811423362 2587747660 3622846724 4528558405 9057116810 18114233620