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5072561 = 133141307
BaseRepresentation
bin10011010110011010110001
3100112201020122
4103112122301
52244310221
6300420025
761054544
oct23263261
910481218
105072561
1129550aa
121847615
131087b20
1496085b
156a2eab
hex4d66b1

5072561 has 16 divisors (see below), whose sum is σ = 5795328. Its totient is φ = 4406400.

The previous prime is 5072539. The next prime is 5072603. The reversal of 5072561 is 1652705.

5072561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5072561 - 26 = 5072497 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5072561.

It is not an unprimeable number, because it can be changed into a prime (5072531) 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, 16370 + ... + 16676.

It is an arithmetic number, because the mean of its divisors is an integer number (362208).

Almost surely, 25072561 is an apocalyptic number.

It is an amenable number.

5072561 is a deficient number, since it is larger than the sum of its proper divisors (722767).

5072561 is a wasteful number, since it uses less digits than its factorization.

5072561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 5072561 is about 2252.2346680575. The cubic root of 5072561 is about 171.8208089653.

The spelling of 5072561 in words is "five million, seventy-two thousand, five hundred sixty-one".

Divisors: 1 13 31 41 307 403 533 1271 3991 9517 12587 16523 123721 163631 390197 5072561