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280323422 = 2199370327
BaseRepresentation
bin10000101101010…
…110010101011110
3201112110220102222
4100231112111132
51033230322142
643452145342
76642465311
oct2055262536
9645426388
10280323422
11134265155
1279a68252
13460cb962
1429330978
1519923bd2
hex10b5655e

280323422 has 8 divisors (see below), whose sum is σ = 420702096. Its totient is φ = 140089392.

The previous prime is 280323401. The next prime is 280323427. The reversal of 280323422 is 224323082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 280323391 and 280323400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280323427) 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, 31178 + ... + 39149.

It is an arithmetic number, because the mean of its divisors is an integer number (52587762).

Almost surely, 2280323422 is an apocalyptic number.

280323422 is a deficient number, since it is larger than the sum of its proper divisors (140378674).

280323422 is a wasteful number, since it uses less digits than its factorization.

280323422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72322.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 280323422 is about 16742.8618222812. The cubic root of 280323422 is about 654.4650543560.

The spelling of 280323422 in words is "two hundred eighty million, three hundred twenty-three thousand, four hundred twenty-two".

Divisors: 1 2 1993 3986 70327 140654 140161711 280323422