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53123313 = 379224149
BaseRepresentation
bin1100101010100…
…1100011110001
310200221221111010
43022221203301
5102044421223
65134341133
71213353315
oct312514361
9120857433
1053123313
1127a94371
121595a7a9
13b00cc19
1470abb45
1549e5393
hex32a98f1

53123313 has 8 divisors (see below), whose sum is σ = 71728000. Its totient is φ = 34967088.

The previous prime is 53123309. The next prime is 53123327. The reversal of 53123313 is 31332135.

53123313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53123313 - 22 = 53123309 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 53123313.

It is not an unprimeable number, because it can be changed into a prime (53123393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111838 + ... + 112311.

It is an arithmetic number, because the mean of its divisors is an integer number (8966000).

Almost surely, 253123313 is an apocalyptic number.

It is an amenable number.

53123313 is a deficient number, since it is larger than the sum of its proper divisors (18604687).

53123313 is a wasteful number, since it uses less digits than its factorization.

53123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224231.

The product of its digits is 810, while the sum is 21.

The square root of 53123313 is about 7288.5741403926. The cubic root of 53123313 is about 375.9196698204.

Adding to 53123313 its reverse (31332135), we get a palindrome (84455448).

The spelling of 53123313 in words is "fifty-three million, one hundred twenty-three thousand, three hundred thirteen".

Divisors: 1 3 79 237 224149 672447 17707771 53123313