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52718497 = 134198909
BaseRepresentation
bin1100100100011…
…0101110100001
310200012101011221
43021012232201
5101443442442
65121535041
71210046146
oct311065641
9120171157
1052718497
1127838207
12157a4481
13abca8a0
1470043cd
154965467
hex3246ba1

52718497 has 8 divisors (see below), whose sum is σ = 58159080. Its totient is φ = 47475840.

The previous prime is 52718467. The next prime is 52718531. The reversal of 52718497 is 79481725.

It can be written as a sum of positive squares in 4 ways, for example, as 1008016 + 51710481 = 1004^2 + 7191^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52718497 - 211 = 52716449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52718417) 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, 48922 + ... + 49987.

It is an arithmetic number, because the mean of its divisors is an integer number (7269885).

Almost surely, 252718497 is an apocalyptic number.

It is an amenable number.

52718497 is a deficient number, since it is larger than the sum of its proper divisors (5440583).

52718497 is a wasteful number, since it uses less digits than its factorization.

52718497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98963.

The product of its digits is 141120, while the sum is 43.

The square root of 52718497 is about 7260.7504433082. The cubic root of 52718497 is about 374.9623594812.

The spelling of 52718497 in words is "fifty-two million, seven hundred eighteen thousand, four hundred ninety-seven".

Divisors: 1 13 41 533 98909 1285817 4055269 52718497