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53311703 = 142937307
BaseRepresentation
bin1100101101011…
…1100011010111
310201022111220112
43023113203113
5102121433303
65142353235
71215066464
oct313274327
9121274815
1053311703
1128102965
1215a2b81b
13b0778b3
14711a66b
154a310d8
hex32d78d7

53311703 has 4 divisors (see below), whose sum is σ = 53350440. Its totient is φ = 53272968.

The previous prime is 53311691. The next prime is 53311717. The reversal of 53311703 is 30711335.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30711335 = 56142267.

It is a cyclic number.

It is not a de Polignac number, because 53311703 - 26 = 53311639 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 (53311733) 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, 17225 + ... + 20082.

It is an arithmetic number, because the mean of its divisors is an integer number (13337610).

Almost surely, 253311703 is an apocalyptic number.

53311703 is a deficient number, since it is larger than the sum of its proper divisors (38737).

53311703 is a wasteful number, since it uses less digits than its factorization.

53311703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38736.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 53311703 is about 7301.4863555306. The cubic root of 53311703 is about 376.3635173640.

The spelling of 53311703 in words is "fifty-three million, three hundred eleven thousand, seven hundred three".

Divisors: 1 1429 37307 53311703