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31053413 = 311001723
BaseRepresentation
bin111011001110…
…1011001100101
32011102200021102
41312131121211
530422202123
63025325445
7524643506
oct166353145
964380242
1031053413
111658a986
12a496885
136583601
1441a4bad
152ad6028
hex1d9d665

31053413 has 4 divisors (see below), whose sum is σ = 32055168. Its totient is φ = 30051660.

The previous prime is 31053409. The next prime is 31053431. The reversal of 31053413 is 31435013.

It is a happy number.

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: 31435013 = 53475879.

It is a cyclic number.

It is not a de Polignac number, because 31053413 - 22 = 31053409 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 (31053443) 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, 500831 + ... + 500892.

It is an arithmetic number, because the mean of its divisors is an integer number (8013792).

Almost surely, 231053413 is an apocalyptic number.

It is an amenable number.

31053413 is a deficient number, since it is larger than the sum of its proper divisors (1001755).

31053413 is a wasteful number, since it uses less digits than its factorization.

31053413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001754.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 31053413 is about 5572.5589274587. The cubic root of 31053413 is about 314.3183816792.

Adding to 31053413 its reverse (31435013), we get a palindrome (62488426).

The spelling of 31053413 in words is "thirty-one million, fifty-three thousand, four hundred thirteen".

Divisors: 1 31 1001723 31053413