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52474689 = 3310318869
BaseRepresentation
bin1100100000101…
…1001101000001
310122201222202000
43020023031001
5101413142224
65112414213
71205012301
oct310131501
9118658660
1052474689
1127691013
12156a7369
13ab43917
146d7d601
1549180c9
hex320b341

52474689 has 16 divisors (see below), whose sum is σ = 78499200. Its totient is φ = 34641648.

The previous prime is 52474673. The next prime is 52474727. The reversal of 52474689 is 98647425.

It is a happy number.

52474689 is a `hidden beast` number, since 524 + 7 + 46 + 89 = 666.

It is not a de Polignac number, because 52474689 - 24 = 52474673 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52473689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6654 + ... + 12215.

It is an arithmetic number, because the mean of its divisors is an integer number (4906200).

Almost surely, 252474689 is an apocalyptic number.

It is an amenable number.

52474689 is a deficient number, since it is larger than the sum of its proper divisors (26024511).

52474689 is a wasteful number, since it uses less digits than its factorization.

52474689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18981 (or 18975 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 52474689 is about 7243.9415375885. The cubic root of 52474689 is about 374.3834348152.

The spelling of 52474689 in words is "fifty-two million, four hundred seventy-four thousand, six hundred eighty-nine".

Divisors: 1 3 9 27 103 309 927 2781 18869 56607 169821 509463 1943507 5830521 17491563 52474689