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244313031 = 381437677
BaseRepresentation
bin11101000111111…
…10101111000111
3122000201101110210
432203332233013
51000021004111
640124250503
76024424614
oct1643765707
9560641423
10244313031
111159a9aa6
12699a0a33
133b801031
142463950b
15166ae0a6
hexe8febc7

244313031 has 4 divisors (see below), whose sum is σ = 325750712. Its totient is φ = 162875352.

The previous prime is 244313029. The next prime is 244313053. The reversal of 244313031 is 130313442.

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

It is not a de Polignac number, because 244313031 - 21 = 244313029 is a prime.

It is a super-2 number, since 2×2443130312 = 119377714232813922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244312989 and 244313007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244313131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40718836 + ... + 40718841.

It is an arithmetic number, because the mean of its divisors is an integer number (81437678).

Almost surely, 2244313031 is an apocalyptic number.

244313031 is a deficient number, since it is larger than the sum of its proper divisors (81437681).

244313031 is an equidigital number, since it uses as much as digits as its factorization.

244313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81437680.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 244313031 is about 15630.5160183533. The cubic root of 244313031 is about 625.1470851695.

Adding to 244313031 its reverse (130313442), we get a palindrome (374626473).

The spelling of 244313031 in words is "two hundred forty-four million, three hundred thirteen thousand, thirty-one".

Divisors: 1 3 81437677 244313031