Search a number
-
+
52929881 = 531576361
BaseRepresentation
bin1100100111101…
…0010101011001
310200121010010222
43021322111121
5102022224011
65130245425
71211616344
oct311722531
9120533128
1052929881
1127972004
1215886875
13ac72b74
14705b45b
1549a7ddb
hex327a559

52929881 has 8 divisors (see below), whose sum is σ = 54280584. Its totient is φ = 51592320.

The previous prime is 52929871. The next prime is 52929889. The reversal of 52929881 is 18892925.

It can be written as a sum of positive squares in 4 ways, for example, as 3705625 + 49224256 = 1925^2 + 7016^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-52929881 is a prime.

It is a super-2 number, since 2×529298812 = 5603144605348322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52929889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5141 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (6785073).

Almost surely, 252929881 is an apocalyptic number.

It is an amenable number.

52929881 is a deficient number, since it is larger than the sum of its proper divisors (1350703).

52929881 is a wasteful number, since it uses less digits than its factorization.

52929881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6571.

The product of its digits is 103680, while the sum is 44.

The square root of 52929881 is about 7275.2925027108. The cubic root of 52929881 is about 375.4628501140.

The spelling of 52929881 in words is "fifty-two million, nine hundred twenty-nine thousand, eight hundred eighty-one".

Divisors: 1 53 157 6361 8321 337133 998677 52929881