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56280497 = 7133171951
BaseRepresentation
bin1101011010110…
…0010110110001
310220220100022212
43112230112301
5103401433442
65330141505
71252243040
oct326542661
9126810285
1056280497
1129850409
1216a21895
13b876c90
147690557
154e1aa82
hex35ac5b1

56280497 has 16 divisors (see below), whose sum is σ = 69522432. Its totient is φ = 44366400.

The previous prime is 56280481. The next prime is 56280509. The reversal of 56280497 is 79408265.

It is not a de Polignac number, because 56280497 - 24 = 56280481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56280457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27872 + ... + 29822.

It is an arithmetic number, because the mean of its divisors is an integer number (4345152).

Almost surely, 256280497 is an apocalyptic number.

It is an amenable number.

56280497 is a deficient number, since it is larger than the sum of its proper divisors (13241935).

56280497 is a wasteful number, since it uses less digits than its factorization.

56280497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 56280497 is about 7502.0328578326. The cubic root of 56280497 is about 383.2239485420.

The spelling of 56280497 in words is "fifty-six million, two hundred eighty thousand, four hundred ninety-seven".

Divisors: 1 7 13 91 317 1951 2219 4121 13657 25363 28847 177541 618467 4329269 8040071 56280497