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31053101 = 173749369
BaseRepresentation
bin111011001110…
…1010100101101
32011102122211212
41312131110231
530422144401
63025324205
7524642552
oct166352455
964378755
1031053101
111658a722
12a496665
136583421
1441a4a29
152ad5dbb
hex1d9d52d

31053101 has 8 divisors (see below), whose sum is σ = 33769080. Its totient is φ = 28435968.

The previous prime is 31053097. The next prime is 31053131. The reversal of 31053101 is 10135013.

It can be written as a sum of positive squares in 4 ways, for example, as 9616201 + 21436900 = 3101^2 + 4630^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31053101 - 22 = 31053097 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 (31053131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24056 + ... + 25313.

It is an arithmetic number, because the mean of its divisors is an integer number (4221135).

Almost surely, 231053101 is an apocalyptic number.

It is an amenable number.

31053101 is a deficient number, since it is larger than the sum of its proper divisors (2715979).

31053101 is a wasteful number, since it uses less digits than its factorization.

31053101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49423.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 31053101 is about 5572.5309330680. The cubic root of 31053101 is about 314.3173290019.

Adding to 31053101 its reverse (10135013), we get a palindrome (41188114).

The spelling of 31053101 in words is "thirty-one million, fifty-three thousand, one hundred one".

Divisors: 1 17 37 629 49369 839273 1826653 31053101