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52678564 = 221921912
BaseRepresentation
bin1100100011110…
…0111110100100
310200010100101221
43020330332210
5101441203224
65121030124
71206521551
oct310747644
9120110357
1052678564
1127810204
1215785344
13abb5663
146dd3a28
1549586e4
hex323cfa4

52678564 has 27 divisors (see below), whose sum is σ = 97806891. Its totient is φ = 24822360.

The previous prime is 52678559. The next prime is 52678573. The reversal of 52678564 is 46587625.

The square root of 52678564 is 7258.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×526785642 = 5550062210204192, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52678564.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 275709 + ... + 275899.

Almost surely, 252678564 is an apocalyptic number.

52678564 is the 7258-th square number.

It is an amenable number.

52678564 is a deficient number, since it is larger than the sum of its proper divisors (45128327).

52678564 is a wasteful number, since it uses less digits than its factorization.

52678564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 212 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The cubic root of 52678564 is about 374.8676605615.

It can be divided in two parts, 5267 and 8564, that added together give a palindrome (13831).

The spelling of 52678564 in words is "fifty-two million, six hundred seventy-eight thousand, five hundred sixty-four".

Divisors: 1 2 4 19 38 76 191 361 382 722 764 1444 3629 7258 14516 36481 68951 72962 137902 145924 275804 693139 1386278 2772556 13169641 26339282 52678564