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52747437 = 335474957
BaseRepresentation
bin1100100100110…
…1110010101101
310200020211212210
43021031302231
5102000404222
65122321033
71210226421
oct311156255
9120224783
1052747437
1127857a26
12157b9179
13ac0ab02
147010b81
15496dd0c
hex324dcad

52747437 has 8 divisors (see below), whose sum is σ = 70363936. Its totient is φ = 35147952.

The previous prime is 52747427. The next prime is 52747463. The reversal of 52747437 is 73474725.

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

It is not a de Polignac number, because 52747437 - 211 = 52745389 is a prime.

It is a super-3 number, since 3×527474373 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52747395 and 52747404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52747417) 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, 8163 + ... + 13119.

It is an arithmetic number, because the mean of its divisors is an integer number (8795492).

Almost surely, 252747437 is an apocalyptic number.

It is an amenable number.

52747437 is a deficient number, since it is larger than the sum of its proper divisors (17616499).

52747437 is a wasteful number, since it uses less digits than its factorization.

52747437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507.

The product of its digits is 164640, while the sum is 39.

The square root of 52747437 is about 7262.7430768271. The cubic root of 52747437 is about 375.0309592218.

The spelling of 52747437 in words is "fifty-two million, seven hundred forty-seven thousand, four hundred thirty-seven".

Divisors: 1 3 3547 4957 10641 14871 17582479 52747437