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18412987710 = 2351323631753
BaseRepresentation
bin10001001001011111…
…111110010100111110
31202112020021200122210
4101021133332110332
5300202211101320
612243034121250
71221201545625
oct211137762476
952466250583
1018412987710
117899719217
12369a580226
13197596b600
14c696126bc
1572b7850e0
hex4497fe53e

18412987710 has 48 divisors (see below), whose sum is σ = 47851990704. Its totient is φ = 4532426496.

The previous prime is 18412987669. The next prime is 18412987711. The reversal of 18412987710 is 1778921481.

It is a super-2 number, since 2×184129877102 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18412987710.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18412987711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1810807 + ... + 1820946.

It is an arithmetic number, because the mean of its divisors is an integer number (996916473).

Almost surely, 218412987710 is an apocalyptic number.

18412987710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18412987710 is an abundant number, since it is smaller than the sum of its proper divisors (29439002994).

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

18412987710 is a wasteful number, since it uses less digits than its factorization.

18412987710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631789 (or 3631776 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 48.

The spelling of 18412987710 in words is "eighteen billion, four hundred twelve million, nine hundred eighty-seven thousand, seven hundred ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 169 195 338 390 507 845 1014 1690 2535 5070 3631753 7263506 10895259 18158765 21790518 36317530 47212789 54476295 94425578 108952590 141638367 236063945 283276734 472127890 613766257 708191835 1227532514 1416383670 1841298771 3068831285 3682597542 6137662570 9206493855 18412987710