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378313860 = 22356305231
BaseRepresentation
bin10110100011001…
…001110010000100
3222100212100001110
4112203021302010
51233322020420
6101312325020
712242420601
oct2643116204
9870770043
10378313860
11184603891
12a6843770
13604ba872
143835b6a8
152332cee0
hex168c9c84

378313860 has 24 divisors (see below), whose sum is σ = 1059278976. Its totient is φ = 100883680.

The previous prime is 378313849. The next prime is 378313861. The reversal of 378313860 is 68313873.

It is not an unprimeable number, because it can be changed into a prime (378313861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3152556 + ... + 3152675.

It is an arithmetic number, because the mean of its divisors is an integer number (44136624).

Almost surely, 2378313860 is an apocalyptic number.

378313860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378313860 is an abundant number, since it is smaller than the sum of its proper divisors (680965116).

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

378313860 is a wasteful number, since it uses less digits than its factorization.

378313860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305243 (or 6305241 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 378313860 is about 19450.2920286560. The cubic root of 378313860 is about 723.2427422112.

The spelling of 378313860 in words is "three hundred seventy-eight million, three hundred thirteen thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 6305231 12610462 18915693 25220924 31526155 37831386 63052310 75662772 94578465 126104620 189156930 378313860