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5231217 = 31743739
BaseRepresentation
bin10011111101001001110001
3100211202212210
4103331021301
52314344332
6304042333
762315235
oct23751161
910752783
105231217
112a53322
1219033a9
1311120c4
149a25c5
156d4ecc
hex4fd271

5231217 has 4 divisors (see below), whose sum is σ = 6974960. Its totient is φ = 3487476.

The previous prime is 5231207. The next prime is 5231263. The reversal of 5231217 is 7121325.

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.

It is not a de Polignac number, because 5231217 - 27 = 5231089 is a prime.

It is a D-number.

It is a Duffinian number.

5231217 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5231193 and 5231202.

It is not an unprimeable number, because it can be changed into a prime (5231207) 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, 871867 + ... + 871872.

It is an arithmetic number, because the mean of its divisors is an integer number (1743740).

Almost surely, 25231217 is an apocalyptic number.

It is an amenable number.

5231217 is a deficient number, since it is larger than the sum of its proper divisors (1743743).

5231217 is a wasteful number, since it uses less digits than its factorization.

5231217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743742.

The product of its digits is 420, while the sum is 21.

The square root of 5231217 is about 2287.1853882010. The cubic root of 5231217 is about 173.5938140639.

The spelling of 5231217 in words is "five million, two hundred thirty-one thousand, two hundred seventeen".

Divisors: 1 3 1743739 5231217