Search a number
-
+
52889680 = 245661121
BaseRepresentation
bin1100100111000…
…0100001010000
310200112002000001
43021300201100
5102014432210
65125335344
71211361214
oct311604120
9120462001
1052889680
1127944888
1215867554
13ac5a78c
14704a944
15499b03a
hex3270850

52889680 has 20 divisors (see below), whose sum is σ = 122968692. Its totient is φ = 21155840.

The previous prime is 52889677. The next prime is 52889693. The reversal of 52889680 is 8698825.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24245776 + 28643904 = 4924^2 + 5352^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 52889680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330481 + ... + 330640.

Almost surely, 252889680 is an apocalyptic number.

It is an amenable number.

52889680 is an abundant number, since it is smaller than the sum of its proper divisors (70079012).

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

52889680 is a wasteful number, since it uses less digits than its factorization.

52889680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661134 (or 661128 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 52889680 is about 7272.5291336646. The cubic root of 52889680 is about 375.3677695739.

The spelling of 52889680 in words is "fifty-two million, eight hundred eighty-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 661121 1322242 2644484 3305605 5288968 6611210 10577936 13222420 26444840 52889680