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380856982 = 21117311681
BaseRepresentation
bin10110101100110…
…110101010010110
3222112122112120011
4112230312222112
51234444410412
6101443030434
712303142132
oct2654665226
9875575504
10380856982
11185a90540
12a766b41a
1360b9b27c
14388203c2
15236817a7
hex16b36a96

380856982 has 8 divisors (see below), whose sum is σ = 623220552. Its totient is φ = 173116800.

The previous prime is 380856953. The next prime is 380856989. The reversal of 380856982 is 289658083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380856989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8655819 + ... + 8655862.

It is an arithmetic number, because the mean of its divisors is an integer number (77902569).

Almost surely, 2380856982 is an apocalyptic number.

380856982 is a deficient number, since it is larger than the sum of its proper divisors (242363570).

380856982 is a wasteful number, since it uses less digits than its factorization.

380856982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17311694.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 380856982 is about 19515.5574350312. The cubic root of 380856982 is about 724.8597315635.

The spelling of 380856982 in words is "three hundred eighty million, eight hundred fifty-six thousand, nine hundred eighty-two".

Divisors: 1 2 11 22 17311681 34623362 190428491 380856982