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378532680 = 23353154439
BaseRepresentation
bin10110100011111…
…111001101001000
3222101021110012220
4112203333031020
51233401021210
6101321134040
712244321551
oct2643771510
9871243186
10378532680
11184743229
12a692a320
1360566346
14383b7328
1523372c70
hex168ff348

378532680 has 32 divisors (see below), whose sum is σ = 1135598400. Its totient is φ = 100942016.

The previous prime is 378532673. The next prime is 378532691. The reversal of 378532680 is 86235873.

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, 1577100 + ... + 1577339.

It is an arithmetic number, because the mean of its divisors is an integer number (35487450).

Almost surely, 2378532680 is an apocalyptic number.

378532680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378532680 is an abundant number, since it is smaller than the sum of its proper divisors (757065720).

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

378532680 is a wasteful number, since it uses less digits than its factorization.

378532680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154453 (or 3154449 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 378532680 is about 19455.9163238332. The cubic root of 378532680 is about 723.3821586151.

The spelling of 378532680 in words is "three hundred seventy-eight million, five hundred thirty-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 3154439 6308878 9463317 12617756 15772195 18926634 25235512 31544390 37853268 47316585 63088780 75706536 94633170 126177560 189266340 378532680