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5257407 = 36128729
BaseRepresentation
bin10100000011100010111111
3100220002210210
4110003202333
52321214112
6304403503
762454501
oct24034277
910802723
105257407
112a70a71
121916593
131120cbc
149abd71
156dcb3c
hex5038bf

5257407 has 8 divisors (see below), whose sum is σ = 7125040. Its totient is φ = 3447360.

The previous prime is 5257393. The next prime is 5257451. The reversal of 5257407 is 7047525.

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

It is not a de Polignac number, because 5257407 - 24 = 5257391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14182 + ... + 14547.

It is an arithmetic number, because the mean of its divisors is an integer number (890630).

Almost surely, 25257407 is an apocalyptic number.

5257407 is a deficient number, since it is larger than the sum of its proper divisors (1867633).

5257407 is a wasteful number, since it uses less digits than its factorization.

5257407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28793.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 5257407 is about 2292.9036176865. The cubic root of 5257407 is about 173.8830301187.

The spelling of 5257407 in words is "five million, two hundred fifty-seven thousand, four hundred seven".

Divisors: 1 3 61 183 28729 86187 1752469 5257407