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380195966 = 21931322747
BaseRepresentation
bin10110101010010…
…101010001111110
3222111101221211002
4112222111101332
51234312232331
6101420530302
712264420023
oct2652252176
9874357732
10380195966
11185679947
12a73b0992
13609c9437
14386cb54a
15235a09cb
hex16a9547e

380195966 has 16 divisors (see below), whose sum is σ = 619676160. Its totient is φ = 174282840.

The previous prime is 380195917. The next prime is 380196001. The reversal of 380195966 is 669591083.

It is a self number, because there is not a number n which added to its sum of digits gives 380195966.

It is a congruent number.

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, 160196 + ... + 162551.

It is an arithmetic number, because the mean of its divisors is an integer number (38729760).

Almost surely, 2380195966 is an apocalyptic number.

380195966 is a deficient number, since it is larger than the sum of its proper divisors (239480194).

380195966 is a wasteful number, since it uses less digits than its factorization.

380195966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322799.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 380195966 is about 19498.6144635972. The cubic root of 380195966 is about 724.4401328063.

The spelling of 380195966 in words is "three hundred eighty million, one hundred ninety-five thousand, nine hundred sixty-six".

Divisors: 1 2 19 31 38 62 589 1178 322747 645494 6132193 10005157 12264386 20010314 190097983 380195966