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31341017 = 73429329
BaseRepresentation
bin111011110001…
…1100111011001
32011222021210102
41313203213121
531010403032
63035425145
7530252141
oct167434731
964867712
1031341017
1116766a74
12a5b51b5
1366544a6
14423b921
152b41362
hex1de39d9

31341017 has 4 divisors (see below), whose sum is σ = 31770420. Its totient is φ = 30911616.

The previous prime is 31341001. The next prime is 31341041. The reversal of 31341017 is 71014313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71014313 = 84238431.

It can be written as a sum of positive squares in 2 ways, for example, as 25210441 + 6130576 = 5021^2 + 2476^2 .

It is a cyclic number.

It is not a de Polignac number, because 31341017 - 24 = 31341001 is a prime.

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 31341017.

It is not an unprimeable number, because it can be changed into a prime (31341067) 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, 214592 + ... + 214737.

It is an arithmetic number, because the mean of its divisors is an integer number (7942605).

Almost surely, 231341017 is an apocalyptic number.

It is an amenable number.

31341017 is a deficient number, since it is larger than the sum of its proper divisors (429403).

31341017 is an equidigital number, since it uses as much as digits as its factorization.

31341017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429402.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 31341017 is about 5598.3048327150. The cubic root of 31341017 is about 315.2857640277.

The spelling of 31341017 in words is "thirty-one million, three hundred forty-one thousand, seventeen".

Divisors: 1 73 429329 31341017