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392224032 = 25343892
BaseRepresentation
bin10111011000001…
…101110100100000
31000100001001020000
4113120031310200
51300402132112
6102530420000
712501564204
oct2730156440
91010031200
10392224032
111914447a2
12ab431600
136334b135
143a13cb04
15246797dc
hex1760dd20

392224032 has 90 divisors (see below), whose sum is σ = 1156492953. Its totient is φ = 130405248.

The previous prime is 392223989. The next prime is 392224033. The reversal of 392224032 is 230422293.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

392224032 is a `hidden beast` number, since 39 + 222 + 403 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 362673936 + 29550096 = 19044^2 + 5436^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=14004.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 392223987 and 392224005.

It is not an unprimeable number, because it can be changed into a prime (392224033) 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 14 ways as a sum of consecutive naturals, for example, 1008094 + ... + 1008482.

Almost surely, 2392224032 is an apocalyptic number.

392224032 is a gapful number since it is divisible by the number (32) 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 392224032

392224032 is an abundant number, since it is smaller than the sum of its proper divisors (764268921).

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

392224032 is an frugal number, since it uses more digits than its factorization.

392224032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 392224032 is about 19804.6467274728. The cubic root of 392224032 is about 732.0005374895. Note that the first 3 decimals are identical.

The spelling of 392224032 in words is "three hundred ninety-two million, two hundred twenty-four thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 389 432 648 778 864 1167 1296 1556 2334 2592 3112 3501 4668 6224 7002 9336 10503 12448 14004 18672 21006 28008 31509 37344 42012 56016 63018 84024 112032 126036 151321 168048 252072 302642 336096 453963 504144 605284 907926 1008288 1210568 1361889 1815852 2421136 2723778 3631704 4085667 4842272 5447556 7263408 8171334 10895112 12257001 14526816 16342668 21790224 24514002 32685336 43580448 49028004 65370672 98056008 130741344 196112016 392224032