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52445229 = 317481743
BaseRepresentation
bin1100100000010…
…0000000101101
310122200111022220
43020010000231
5101411221404
65112025553
71204530354
oct310040055
9118614286
1052445229
1127670971
12156922b9
13ab333a5
146d7299b
15490e4d9
hex320402d

52445229 has 4 divisors (see below), whose sum is σ = 69926976. Its totient is φ = 34963484.

The previous prime is 52445227. The next prime is 52445287. The reversal of 52445229 is 92254425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52445229 - 21 = 52445227 is a prime.

It is a super-3 number, since 3×524452293 (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52445229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52445227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8740869 + ... + 8740874.

It is an arithmetic number, because the mean of its divisors is an integer number (17481744).

Almost surely, 252445229 is an apocalyptic number.

It is an amenable number.

52445229 is a deficient number, since it is larger than the sum of its proper divisors (17481747).

52445229 is a wasteful number, since it uses less digits than its factorization.

52445229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17481746.

The product of its digits is 28800, while the sum is 33.

The square root of 52445229 is about 7241.9078287424. The cubic root of 52445229 is about 374.3133603924.

It can be divided in two parts, 524 and 45229, that added together give a triangular number (45753 = T302).

The spelling of 52445229 in words is "fifty-two million, four hundred forty-five thousand, two hundred twenty-nine".

Divisors: 1 3 17481743 52445229