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280324132 = 22116371003
BaseRepresentation
bin10000101101010…
…110100000100100
3201112110221102021
4100231112200210
51033230333012
643452152524
76642500344
oct2055264044
9645427367
10280324132
11134265740
1279a68744
13460cc08a
1429330d24
1519924007
hex10b56824

280324132 has 12 divisors (see below), whose sum is σ = 535164336. Its totient is φ = 127420040.

The previous prime is 280324127. The next prime is 280324147. The reversal of 280324132 is 231423082.

It is a junction number, because it is equal to n+sod(n) for n = 280324097 and 280324106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3185458 + ... + 3185545.

It is an arithmetic number, because the mean of its divisors is an integer number (44597028).

Almost surely, 2280324132 is an apocalyptic number.

280324132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

280324132 is a deficient number, since it is larger than the sum of its proper divisors (254840204).

280324132 is a wasteful number, since it uses less digits than its factorization.

280324132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6371018 (or 6371016 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 280324132 is about 16742.8830253335. The cubic root of 280324132 is about 654.4656068961.

The spelling of 280324132 in words is "two hundred eighty million, three hundred twenty-four thousand, one hundred thirty-two".

Divisors: 1 2 4 11 22 44 6371003 12742006 25484012 70081033 140162066 280324132