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380765910 = 235713113841
BaseRepresentation
bin10110101100100…
…000011011010110
3222112110220122010
4112230200123112
51234434002120
6101441045050
712302312460
oct2654403326
9875426563
10380765910
11185a29078
12a7626786
1360b68995
14387d9130
15236647e0
hex16b206d6

380765910 has 64 divisors (see below), whose sum is σ = 1052434944. Its totient is φ = 86361600.

The previous prime is 380765867. The next prime is 380765929. The reversal of 380765910 is 19567083.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20590 + ... + 34430.

It is an arithmetic number, because the mean of its divisors is an integer number (16444296).

Almost surely, 2380765910 is an apocalyptic number.

380765910 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 380765910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526217472).

380765910 is an abundant number, since it is smaller than the sum of its proper divisors (671669034).

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

380765910 is a wasteful number, since it uses less digits than its factorization.

380765910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13989.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 380765910 is about 19513.2239776004. The cubic root of 380765910 is about 724.8019498666.

The spelling of 380765910 in words is "three hundred eighty million, seven hundred sixty-five thousand, nine hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 131 210 262 393 655 786 917 1310 1834 1965 2751 3930 4585 5502 9170 13755 13841 27510 27682 41523 69205 83046 96887 138410 193774 207615 290661 415230 484435 581322 968870 1453305 1813171 2906610 3626342 5439513 9065855 10879026 12692197 18131710 25384394 27197565 38076591 54395130 63460985 76153182 126921970 190382955 380765910