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52254720 = 2113657
BaseRepresentation
bin1100011101010…
…1100000000000
310122022211000000
43013111200000
5101334122340
65104000000
71203105060
oct307254000
9118284000
1052254720
1127550821
1215600000
13aa9776b
146d233a0
1548c2d30
hex31d5800

52254720 has 336 divisors, whose sum is σ = 214840080. Its totient is φ = 11943936.

The previous prime is 52254701. The next prime is 52254733. The reversal of 52254720 is 2745225.

It is a Jordan-Polya number, since it can be written as 9! ⋅ 4! ⋅ 3!.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7464957 + ... + 7464963.

It is an arithmetic number, because the mean of its divisors is an integer number (639405).

Almost surely, 252254720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52254720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107420040).

52254720 is an abundant number, since it is smaller than the sum of its proper divisors (162585360).

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

52254720 is an frugal number, since it uses more digits than its factorization.

52254720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 52254720 is about 7228.7426292544. The cubic root of 52254720 is about 373.8595753333.

Adding to 52254720 its reverse (2745225), we get a palindrome (54999945).

The spelling of 52254720 in words is "fifty-two million, two hundred fifty-four thousand, seven hundred twenty".