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52386638 = 2791312531
BaseRepresentation
bin1100011111010…
…1101101001110
310122120111221212
43013311231032
5101402333023
65110454422
71204164503
oct307655516
9118514855
1052386638
1127630947
1215664412
13ab12815
146d594aa
1548ebe78
hex31f5b4e

52386638 has 16 divisors (see below), whose sum is σ = 80213760. Its totient is φ = 25654200.

The previous prime is 52386613. The next prime is 52386641. The reversal of 52386638 is 83668325.

It is a junction number, because it is equal to n+sod(n) for n = 52386595 and 52386604.

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, 19433 + ... + 21963.

It is an arithmetic number, because the mean of its divisors is an integer number (5013360).

Almost surely, 252386638 is an apocalyptic number.

52386638 is a deficient number, since it is larger than the sum of its proper divisors (27827122).

52386638 is a wasteful number, since it uses less digits than its factorization.

52386638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743.

The product of its digits is 207360, while the sum is 41.

The square root of 52386638 is about 7237.8614244817. The cubic root of 52386638 is about 374.1739160824.

The spelling of 52386638 in words is "fifty-two million, three hundred eighty-six thousand, six hundred thirty-eight".

Divisors: 1 2 79 131 158 262 2531 5062 10349 20698 199949 331561 399898 663122 26193319 52386638