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52753991 = 436718311
BaseRepresentation
bin1100100100111…
…1011001000111
310200021011212112
43021033121013
5102001111431
65122411235
71210254503
oct311173107
9120234775
1052753991
1127861944
1215800b1b
13ac10aa4
147013303
154970c2b
hex324f647

52753991 has 8 divisors (see below), whose sum is σ = 54789504. Its totient is φ = 50755320.

The previous prime is 52753963. The next prime is 52753993. The reversal of 52753991 is 19935725.

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 52753991 - 218 = 52491847 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 (52753993) 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, 6275 + ... + 12036.

It is an arithmetic number, because the mean of its divisors is an integer number (6848688).

Almost surely, 252753991 is an apocalyptic number.

52753991 is a deficient number, since it is larger than the sum of its proper divisors (2035513).

52753991 is a wasteful number, since it uses less digits than its factorization.

52753991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18421.

The product of its digits is 85050, while the sum is 41.

The square root of 52753991 is about 7263.1942697411. The cubic root of 52753991 is about 375.0464914211.

The spelling of 52753991 in words is "fifty-two million, seven hundred fifty-three thousand, nine hundred ninety-one".

Divisors: 1 43 67 2881 18311 787373 1226837 52753991