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52317380 = 2252615869
BaseRepresentation
bin1100011110010…
…0110011000100
310122102222221202
43013210303010
5101343124010
65105202032
71203455543
oct307446304
9118388852
1052317380
1127593905
1215630318
13aaba13b
146d3c15a
1548d66a5
hex31e4cc4

52317380 has 12 divisors (see below), whose sum is σ = 109866540. Its totient is φ = 20926944.

The previous prime is 52317379. The next prime is 52317401. The reversal of 52317380 is 8371325.

It can be written as a sum of positive squares in 2 ways, for example, as 5750404 + 46566976 = 2398^2 + 6824^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307915 + ... + 1307954.

It is an arithmetic number, because the mean of its divisors is an integer number (9155545).

Almost surely, 252317380 is an apocalyptic number.

It is an amenable number.

52317380 is an abundant number, since it is smaller than the sum of its proper divisors (57549160).

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

52317380 is a wasteful number, since it uses less digits than its factorization.

52317380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615878 (or 2615876 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 52317380 is about 7233.0754178289. The cubic root of 52317380 is about 374.0089505708.

The spelling of 52317380 in words is "fifty-two million, three hundred seventeen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2615869 5231738 10463476 13079345 26158690 52317380