Search a number
-
+
5157431 = 41125791
BaseRepresentation
bin10011101011001000110111
3100201000122222
4103223020313
52310014211
6302312555
761560146
oct23531067
910630588
105157431
112a02944
12188875b
1310b7646
1498375d
156bd1db
hex4eb237

5157431 has 4 divisors (see below), whose sum is σ = 5283264. Its totient is φ = 5031600.

The previous prime is 5157421. The next prime is 5157457. The reversal of 5157431 is 1347515.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5157431 is a prime.

It is a super-2 number, since 2×51574312 = 53198189039522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5157431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5157421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62855 + ... + 62936.

It is an arithmetic number, because the mean of its divisors is an integer number (1320816).

Almost surely, 25157431 is an apocalyptic number.

5157431 is a deficient number, since it is larger than the sum of its proper divisors (125833).

5157431 is a wasteful number, since it uses less digits than its factorization.

5157431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125832.

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

The square root of 5157431 is about 2270.9977983257. The cubic root of 5157431 is about 172.7737695775.

The spelling of 5157431 in words is "five million, one hundred fifty-seven thousand, four hundred thirty-one".

Divisors: 1 41 125791 5157431