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52745236 = 22611131913
BaseRepresentation
bin1100100100110…
…1010000010100
310200020201212021
43021031100110
5102000321421
65122302524
71210220125
oct311152024
9120221767
1052745236
1127856305
12157b7a44
13ac09acb
14701004c
15496d341
hex324d414

52745236 has 24 divisors (see below), whose sum is σ = 94697064. Its totient is φ = 25697280.

The previous prime is 52745221. The next prime is 52745243. The reversal of 52745236 is 63254725.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 52707600 = 194^2 + 7260^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26616 + ... + 28528.

It is an arithmetic number, because the mean of its divisors is an integer number (3945711).

Almost surely, 252745236 is an apocalyptic number.

It is an amenable number.

52745236 is a deficient number, since it is larger than the sum of its proper divisors (41951828).

52745236 is a wasteful number, since it uses less digits than its factorization.

52745236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2089 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 52745236 is about 7262.5915484763. The cubic root of 52745236 is about 375.0257428254.

It can be divided in two parts, 5 and 2745236, that multiplied together give a triangular number (13726180 = T5239).

The spelling of 52745236 in words is "fifty-two million, seven hundred forty-five thousand, two hundred thirty-six".

Divisors: 1 2 4 61 113 122 226 244 452 1913 3826 6893 7652 13786 27572 116693 216169 233386 432338 466772 864676 13186309 26372618 52745236