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380088864 = 25323753673
BaseRepresentation
bin10110101001111…
…011001000100000
3222111012111220100
4112221323020200
51234300320424
6101414342400
712263462541
oct2651731040
9874174810
10380088864
11185606431
12a735aa00
136098c76c
14386a04c8
152357ddc9
hex16a7b220

380088864 has 144 divisors (see below), whose sum is σ = 1132716312. Its totient is φ = 120766464.

The previous prime is 380088857. The next prime is 380088871. The reversal of 380088864 is 468880083.

It is an interprime number because it is at equal distance from previous prime (380088857) and next prime (380088871).

It can be written as a sum of positive squares in 4 ways, for example, as 372798864 + 7290000 = 19308^2 + 2700^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564432 + ... + 565104.

Almost surely, 2380088864 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 380088864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566358156).

380088864 is an abundant number, since it is smaller than the sum of its proper divisors (752627448).

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

380088864 is a wasteful number, since it uses less digits than its factorization.

380088864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 380088864 is about 19495.8678698846. The cubic root of 380088864 is about 724.3721009834.

The spelling of 380088864 in words is "three hundred eighty million, eighty-eight thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 37 48 53 72 74 96 106 111 144 148 159 212 222 288 296 318 333 424 444 477 592 636 666 673 848 888 954 1184 1272 1332 1346 1696 1776 1908 1961 2019 2544 2664 2692 3552 3816 3922 4038 5088 5328 5384 5883 6057 7632 7844 8076 10656 10768 11766 12114 15264 15688 16152 17649 21536 23532 24228 24901 31376 32304 35298 35669 47064 48456 49802 62752 64608 70596 71338 74703 94128 96912 99604 107007 141192 142676 149406 188256 193824 199208 214014 224109 282384 285352 298812 321021 398416 428028 448218 564768 570704 597624 642042 796832 856056 896436 1141408 1195248 1284084 1319753 1712112 1792872 2390496 2568168 2639506 3424224 3585744 3959259 5136336 5279012 7171488 7918518 10272672 10558024 11877777 15837036 21116048 23755554 31674072 42232096 47511108 63348144 95022216 126696288 190044432 380088864