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5145257 = 131937563
BaseRepresentation
bin10011101000001010101001
3100200101222002
4103220022221
52304122012
6302140345
761506515
oct23501251
910611862
105145257
1129a4787
1218816b5
1310b1c40
1497d145
156b97c2
hex4e82a9

5145257 has 16 divisors (see below), whose sum is σ = 6000960. Its totient is φ = 4370112.

The previous prime is 5145233. The next prime is 5145263. The reversal of 5145257 is 7525415.

It is a cyclic number.

It is not a de Polignac number, because 5145257 - 214 = 5128873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5145757) 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, 8858 + ... + 9420.

It is an arithmetic number, because the mean of its divisors is an integer number (375060).

Almost surely, 25145257 is an apocalyptic number.

It is an amenable number.

5145257 is a deficient number, since it is larger than the sum of its proper divisors (855703).

5145257 is a wasteful number, since it uses less digits than its factorization.

5145257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its digits is 7000, while the sum is 29.

The square root of 5145257 is about 2268.3158951081. The cubic root of 5145257 is about 172.6377196065.

The spelling of 5145257 in words is "five million, one hundred forty-five thousand, two hundred fifty-seven".

Divisors: 1 13 19 37 247 481 563 703 7319 9139 10697 20831 139061 270803 395789 5145257