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4931257 = 10634639
BaseRepresentation
bin10010110011111010111001
3100021112102011
4102303322321
52230300012
6253405521
756625562
oct22637271
910245364
104931257
112868a21
1217998a1
131038706
14925169
156761a7
hex4b3eb9

4931257 has 4 divisors (see below), whose sum is σ = 4936960. Its totient is φ = 4925556.

The previous prime is 4931237. The next prime is 4931261. The reversal of 4931257 is 7521394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4931257 - 211 = 4929209 is a prime.

It is a d-powerful number, because it can be written as 44 + 97 + 33 + 1 + 217 + 53 + 75 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4931237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1257 + ... + 3382.

It is an arithmetic number, because the mean of its divisors is an integer number (1234240).

Almost surely, 24931257 is an apocalyptic number.

It is an amenable number.

4931257 is a deficient number, since it is larger than the sum of its proper divisors (5703).

4931257 is a wasteful number, since it uses less digits than its factorization.

4931257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5702.

The product of its digits is 7560, while the sum is 31.

The square root of 4931257 is about 2220.6433752406. The cubic root of 4931257 is about 170.2103163999.

The spelling of 4931257 in words is "four million, nine hundred thirty-one thousand, two hundred fifty-seven".

Divisors: 1 1063 4639 4931257