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31052953 = 37839269
BaseRepresentation
bin111011001110…
…1010010011001
32011102122122101
41312131102121
530422143303
63025323401
7524642251
oct166352231
964378571
1031052953
111658a5a8
12a496561
136583339
1441a4961
152ad5d1d
hex1d9d499

31052953 has 4 divisors (see below), whose sum is σ = 31892260. Its totient is φ = 30213648.

The previous prime is 31052927. The next prime is 31052963. The reversal of 31052953 is 35925013.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24334489 + 6718464 = 4933^2 + 2592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31052953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31052963) 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, 419598 + ... + 419671.

It is an arithmetic number, because the mean of its divisors is an integer number (7973065).

Almost surely, 231052953 is an apocalyptic number.

It is an amenable number.

31052953 is a deficient number, since it is larger than the sum of its proper divisors (839307).

31052953 is an equidigital number, since it uses as much as digits as its factorization.

31052953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839306.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 31052953 is about 5572.5176536284. The cubic root of 31052953 is about 314.3168296525.

Adding to 31052953 its reverse (35925013), we get a palindrome (66977966).

The spelling of 31052953 in words is "thirty-one million, fifty-two thousand, nine hundred fifty-three".

Divisors: 1 37 839269 31052953