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380178864 = 2432132947149
BaseRepresentation
bin10110101010010…
…001000110110000
3222111101002100200
4112222101012300
51234311210424
6101420315200
712264316122
oct2652210660
9874332320
10380178864
1118566800a
12a73a2b00
13609c1710
14386c5212
152359a8c9
hex16a911b0

380178864 has 240 divisors, whose sum is σ = 1218672000. Its totient is φ = 109799424.

The previous prime is 380178859. The next prime is 380178881. The reversal of 380178864 is 468871083.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2551462 + ... + 2551610.

It is an arithmetic number, because the mean of its divisors is an integer number (5077800).

Almost surely, 2380178864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380178864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609336000).

380178864 is an abundant number, since it is smaller than the sum of its proper divisors (838493136).

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

380178864 is a wasteful number, since it uses less digits than its factorization.

380178864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 380178864 is about 19498.1759146849. The cubic root of 380178864 is about 724.4292703722.

The spelling of 380178864 in words is "three hundred eighty million, one hundred seventy-eight thousand, eight hundred sixty-four".