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392338080 = 2535510091
BaseRepresentation
bin10111011000101…
…001101010100000
31000100020211200000
4113120221222200
51300414304310
6102533100000
712502550541
oct2730515240
91010224600
10392338080
11191512452
12ab487600
136338b014
143a16c4c8
152469d4c0
hex17629aa0

392338080 has 144 divisors (see below), whose sum is σ = 1388578464. Its totient is φ = 104613120.

The previous prime is 392338073. The next prime is 392338081. The reversal of 392338080 is 80833293.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (392338081) by changing a digit.

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, 33835 + ... + 43925.

It is an arithmetic number, because the mean of its divisors is an integer number (9642906).

Almost surely, 2392338080 is an apocalyptic number.

392338080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 392338080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694289232).

392338080 is an abundant number, since it is smaller than the sum of its proper divisors (996240384).

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

392338080 is a wasteful number, since it uses less digits than its factorization.

392338080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121 (or 10101 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 392338080 is about 19807.5258424670. The cubic root of 392338080 is about 732.0714791795.

The spelling of 392338080 in words is "three hundred ninety-two million, three hundred thirty-eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 81 90 96 108 120 135 144 160 162 180 216 240 243 270 288 324 360 405 432 480 486 540 648 720 810 864 972 1080 1215 1296 1440 1620 1944 2160 2430 2592 3240 3888 4320 4860 6480 7776 9720 10091 12960 19440 20182 30273 38880 40364 50455 60546 80728 90819 100910 121092 151365 161456 181638 201820 242184 272457 302730 322912 363276 403640 454095 484368 544914 605460 726552 807280 817371 908190 968736 1089828 1210920 1362285 1453104 1614560 1634742 1816380 2179656 2421840 2452113 2724570 2906208 3269484 3632760 4086855 4359312 4843680 4904226 5449140 6538968 7265520 8173710 8718624 9808452 10898280 12260565 13077936 14531040 16347420 19616904 21796560 24521130 26155872 32694840 39233808 43593120 49042260 65389680 78467616 98084520 130779360 196169040 392338080