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280608001 = 17314711329
BaseRepresentation
bin10000101110011…
…011110100000001
3201120000100210221
4100232123310001
51033313424001
643502223041
76645062062
oct2056336401
9646010727
10280608001
11134439a43
1279b84a81
134619b34b
14293a6569
151997d1a1
hex10b9bd01

280608001 has 16 divisors (see below), whose sum is σ = 313251840. Its totient is φ = 250122240.

The previous prime is 280607989. The next prime is 280608007. The reversal of 280608001 is 100806082.

It is a cyclic number.

It is not a de Polignac number, because 280608001 - 215 = 280575233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280608007) 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 15 ways as a sum of consecutive naturals, for example, 19105 + ... + 30433.

It is an arithmetic number, because the mean of its divisors is an integer number (19578240).

Almost surely, 2280608001 is an apocalyptic number.

It is an amenable number.

280608001 is a deficient number, since it is larger than the sum of its proper divisors (32643839).

280608001 is a wasteful number, since it uses less digits than its factorization.

280608001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11424.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 280608001 is about 16751.3581837414. The cubic root of 280608001 is about 654.6864462755.

The spelling of 280608001 in words is "two hundred eighty million, six hundred eight thousand, one".

Divisors: 1 17 31 47 527 799 1457 11329 24769 192593 351199 532463 5970383 9051871 16506353 280608001