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52344020 = 22517153953
BaseRepresentation
bin1100011110101…
…1010011010100
310122111100111102
43013223103110
5101400002040
65105525232
71203626321
oct307532324
9118440442
1052344020
1127601923
1215643818
13aac92c1
146d47b48
1548de515
hex31eb4d4

52344020 has 24 divisors (see below), whose sum is σ = 116389224. Its totient is φ = 19705856.

The previous prime is 52344007. The next prime is 52344049. The reversal of 52344020 is 2044325.

It can be written as a sum of positive squares in 4 ways, for example, as 27920656 + 24423364 = 5284^2 + 4942^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52343983 and 52344001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76637 + ... + 77316.

It is an arithmetic number, because the mean of its divisors is an integer number (4849551).

Almost surely, 252344020 is an apocalyptic number.

It is an amenable number.

52344020 is an abundant number, since it is smaller than the sum of its proper divisors (64045204).

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

52344020 is a wasteful number, since it uses less digits than its factorization.

52344020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153979 (or 153977 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 52344020 is about 7234.9167237778. The cubic root of 52344020 is about 374.0724215611.

Adding to 52344020 its reverse (2044325), we get a palindrome (54388345).

The spelling of 52344020 in words is "fifty-two million, three hundred forty-four thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 153953 307906 615812 769765 1539530 2617201 3079060 5234402 10468804 13086005 26172010 52344020