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53133023 = 450711789
BaseRepresentation
bin1100101010101…
…1111011011111
310200222102210202
43022223323133
5102100224043
65134454115
71213423526
oct312537337
9120872722
1053133023
1127aa0699
121596433b
13b014478
1470b14bd
1549e81b8
hex32abedf

53133023 has 4 divisors (see below), whose sum is σ = 53149320. Its totient is φ = 53116728.

The previous prime is 53132957. The next prime is 53133037. The reversal of 53133023 is 32033135.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53133023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53132986 and 53133004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53133043) 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, 1388 + ... + 10401.

It is an arithmetic number, because the mean of its divisors is an integer number (13287330).

Almost surely, 253133023 is an apocalyptic number.

53133023 is a deficient number, since it is larger than the sum of its proper divisors (16297).

53133023 is a wasteful number, since it uses less digits than its factorization.

53133023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16296.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 53133023 is about 7289.2402210381. The cubic root of 53133023 is about 375.9425722426.

Adding to 53133023 its reverse (32033135), we get a palindrome (85166158).

The spelling of 53133023 in words is "fifty-three million, one hundred thirty-three thousand, twenty-three".

Divisors: 1 4507 11789 53133023