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280925483 = 972896139
BaseRepresentation
bin10000101111101…
…001010100101011
3201120121111022112
4100233221110223
51033404103413
643513112535
76650553506
oct2057512453
9646544275
10280925483
11134636523
127a0b874b
134627c9c7
142944a13d
15199e22a8
hex10be952b

280925483 has 4 divisors (see below), whose sum is σ = 283821720. Its totient is φ = 278029248.

The previous prime is 280925461. The next prime is 280925539. The reversal of 280925483 is 384529082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 280925483 - 224 = 264148267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 280925483.

It is not an unprimeable number, because it can be changed into a prime (280925443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447973 + ... + 1448166.

It is an arithmetic number, because the mean of its divisors is an integer number (70955430).

Almost surely, 2280925483 is an apocalyptic number.

280925483 is a deficient number, since it is larger than the sum of its proper divisors (2896237).

280925483 is an equidigital number, since it uses as much as digits as its factorization.

280925483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896236.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 280925483 is about 16760.8318111005. The cubic root of 280925483 is about 654.9332589379.

The spelling of 280925483 in words is "two hundred eighty million, nine hundred twenty-five thousand, four hundred eighty-three".

Divisors: 1 97 2896139 280925483