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31342053 = 310447351
BaseRepresentation
bin111011110001…
…1110111100101
32011222100012210
41313203313211
531010421203
63035434033
7530255151
oct167436745
964870183
1031342053
1116767826
12a5b5919
136654ac2
14423c061
152b41803
hex1de3de5

31342053 has 4 divisors (see below), whose sum is σ = 41789408. Its totient is φ = 20894700.

The previous prime is 31342049. The next prime is 31342057. The reversal of 31342053 is 35024313.

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 an emirpimes, since its reverse is a distinct semiprime: 35024313 = 311674771.

It is an interprime number because it is at equal distance from previous prime (31342049) and next prime (31342057).

It is not a de Polignac number, because 31342053 - 22 = 31342049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31342057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5223673 + ... + 5223678.

It is an arithmetic number, because the mean of its divisors is an integer number (10447352).

Almost surely, 231342053 is an apocalyptic number.

It is an amenable number.

31342053 is a deficient number, since it is larger than the sum of its proper divisors (10447355).

31342053 is a wasteful number, since it uses less digits than its factorization.

31342053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10447354.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 31342053 is about 5598.3973599594. The cubic root of 31342053 is about 315.2892379891.

Adding to 31342053 its reverse (35024313), we get a palindrome (66366366).

The spelling of 31342053 in words is "thirty-one million, three hundred forty-two thousand, fifty-three".

Divisors: 1 3 10447351 31342053