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18850982374 = 272712709253
BaseRepresentation
bin10001100011100110…
…110010100111100110
31210122202110010101101
4101203212302213212
5302101322413444
612354321550314
71235100464200
oct214346624746
953582403341
1018850982374
117aa3985084
1237a11a539a
131a15623a53
14cab867770
15754e513d4
hex4639b29e6

18850982374 has 24 divisors (see below), whose sum is σ = 33356335248. Its totient is φ = 7965200880.

The previous prime is 18850982369. The next prime is 18850982383. The reversal of 18850982374 is 47328905881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1347669 + ... + 1361584.

It is an arithmetic number, because the mean of its divisors is an integer number (1389847302).

Almost surely, 218850982374 is an apocalyptic number.

18850982374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18850982374 is a deficient number, since it is larger than the sum of its proper divisors (14505352874).

18850982374 is a wasteful number, since it uses less digits than its factorization.

18850982374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709340 (or 2709333 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 18850982374 in words is "eighteen billion, eight hundred fifty million, nine hundred eighty-two thousand, three hundred seventy-four".

Divisors: 1 2 7 14 49 71 98 142 497 994 3479 6958 2709253 5418506 18964771 37929542 132753397 192356963 265506794 384713926 1346498741 2692997482 9425491187 18850982374