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378744090 = 23512624803
BaseRepresentation
bin10110100100110…
…010110100011010
3222101200012012220
4112210302310122
51233424302330
6101325444510
712246162114
oct2644626432
9871605186
10378744090
1118487804a
12a6a10736
136060b63a
14384303b4
15233b5710
hex16932d1a

378744090 has 16 divisors (see below), whose sum is σ = 908985888. Its totient is φ = 100998416.

The previous prime is 378744073. The next prime is 378744097. The reversal of 378744090 is 90447873.

It is not an unprimeable number, because it can be changed into a prime (378744097) 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, 6312372 + ... + 6312431.

It is an arithmetic number, because the mean of its divisors is an integer number (56811618).

Almost surely, 2378744090 is an apocalyptic number.

378744090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

378744090 is an abundant number, since it is smaller than the sum of its proper divisors (530241798).

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

378744090 is a wasteful number, since it uses less digits than its factorization.

378744090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12624813.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 378744090 is about 19461.3486171951. The cubic root of 378744090 is about 723.5168028776.

The spelling of 378744090 in words is "three hundred seventy-eight million, seven hundred forty-four thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 12624803 25249606 37874409 63124015 75748818 126248030 189372045 378744090