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378469386 = 23227177587
BaseRepresentation
bin10110100011101…
…111110000001010
3222101011020101200
4112203233300022
51233342010021
6101315525030
712243636201
oct2643576012
9871136350
10378469386
111846aa719
12a68b9776
13605435a9
143839c238
152335e126
hex168efc0a

378469386 has 24 divisors (see below), whose sum is σ = 823053504. Its totient is φ = 125689320.

The previous prime is 378469369. The next prime is 378469397. The reversal of 378469386 is 683964873.

It is a super-2 number, since 2×3784693862 = 286478152278433992, which contains 22 as substring.

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, 33916 + ... + 43671.

It is an arithmetic number, because the mean of its divisors is an integer number (34293896).

Almost surely, 2378469386 is an apocalyptic number.

378469386 is an abundant number, since it is smaller than the sum of its proper divisors (444584118).

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

378469386 is a wasteful number, since it uses less digits than its factorization.

378469386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77866 (or 77863 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 378469386 is about 19454.2896554976. The cubic root of 378469386 is about 723.3418377437.

The spelling of 378469386 in words is "three hundred seventy-eight million, four hundred sixty-nine thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 18 271 542 813 1626 2439 4878 77587 155174 232761 465522 698283 1396566 21026077 42052154 63078231 126156462 189234693 378469386