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52309460 = 2257253377
BaseRepresentation
bin1100011110001…
…0110111010100
310122102121002102
43013202313110
5101342400320
65105101232
71203423500
oct307426724
9118377072
1052309460
1127588965
1215627818
13aab6658
146d39300
1548d4175
hex31e2dd4

52309460 has 36 divisors (see below), whose sum is σ = 127786932. Its totient is φ = 17934336.

The previous prime is 52309447. The next prime is 52309469. The reversal of 52309460 is 6490325.

It can be written as a sum of positive squares in 2 ways, for example, as 41113744 + 11195716 = 6412^2 + 3346^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52309469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25709 + ... + 27668.

It is an arithmetic number, because the mean of its divisors is an integer number (3549637).

Almost surely, 252309460 is an apocalyptic number.

It is an amenable number.

52309460 is an abundant number, since it is smaller than the sum of its proper divisors (75477472).

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

52309460 is a wasteful number, since it uses less digits than its factorization.

52309460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53400 (or 53391 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 52309460 is about 7232.5279121480. The cubic root of 52309460 is about 373.9900766620.

Adding to 52309460 its reverse (6490325), we get a palindrome (58799785).

The spelling of 52309460 in words is "fifty-two million, three hundred nine thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 53377 106754 213508 266885 373639 533770 747278 1067540 1494556 1868195 2615473 3736390 5230946 7472780 10461892 13077365 26154730 52309460