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52750305 = 335390743
BaseRepresentation
bin1100100100111…
…0011111100001
310200020222211000
43021032133201
5102001002210
65122342213
71210240656
oct311163741
9120228730
1052750305
112785a0a3
12157ba969
13ac0c1ca
147011c2d
15496eac0
hex324e7e1

52750305 has 16 divisors (see below), whose sum is σ = 93778560. Its totient is φ = 28133424.

The previous prime is 52750301. The next prime is 52750319. The reversal of 52750305 is 50305725.

It is not a de Polignac number, because 52750305 - 22 = 52750301 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (52750301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195237 + ... + 195506.

It is an arithmetic number, because the mean of its divisors is an integer number (5861160).

Almost surely, 252750305 is an apocalyptic number.

It is an amenable number.

52750305 is a deficient number, since it is larger than the sum of its proper divisors (41028255).

52750305 is a wasteful number, since it uses less digits than its factorization.

52750305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390757 (or 390751 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 52750305 is about 7262.9405202025. The cubic root of 52750305 is about 375.0377561985.

The spelling of 52750305 in words is "fifty-two million, seven hundred fifty thousand, three hundred five".

Divisors: 1 3 5 9 15 27 45 135 390743 1172229 1953715 3516687 5861145 10550061 17583435 52750305