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52032645 = 335755061
BaseRepresentation
bin1100011001111…
…1010010000101
310121220112101000
43012133102011
5101310021040
65055123513
71201161450
oct306372205
9117815330
1052032645
1127409995
1215513599
13aa1a662
146ca6497
15487c130
hex319f485

52032645 has 32 divisors (see below), whose sum is σ = 105719040. Its totient is φ = 23785920.

The previous prime is 52032611. The next prime is 52032667. The reversal of 52032645 is 54623025.

52032645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52032645 - 211 = 52030597 is a prime.

It is a super-2 number, since 2×520326452 = 5414792291392050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26586 + ... + 28475.

It is an arithmetic number, because the mean of its divisors is an integer number (3303720).

Almost surely, 252032645 is an apocalyptic number.

It is an amenable number.

52032645 is an abundant number, since it is smaller than the sum of its proper divisors (53686395).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52032645 is a wasteful number, since it uses less digits than its factorization.

52032645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55082 (or 55076 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 52032645 is about 7213.3657192742. The cubic root of 52032645 is about 373.3292069236.

The spelling of 52032645 in words is "fifty-two million, thirty-two thousand, six hundred forty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 55061 165183 275305 385427 495549 825915 1156281 1486647 1927135 2477745 3468843 5781405 7433235 10406529 17344215 52032645