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56202320 = 245702529
BaseRepresentation
bin1101011001100…
…1010001010000
310220202101002102
43112121101100
5103341433240
65324335532
71251466106
oct326312120
9126671072
1056202320
11297a76a9
12169a45a8
13b84a515
14766dc76
154e02815
hex3599450

56202320 has 20 divisors (see below), whose sum is σ = 130670580. Its totient is φ = 22480896.

The previous prime is 56202283. The next prime is 56202329. The reversal of 56202320 is 2320265.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36096064 + 20106256 = 6008^2 + 4484^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 = 56202292 and 56202301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56202329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351185 + ... + 351344.

It is an arithmetic number, because the mean of its divisors is an integer number (6533529).

Almost surely, 256202320 is an apocalyptic number.

It is an amenable number.

56202320 is an abundant number, since it is smaller than the sum of its proper divisors (74468260).

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

56202320 is a wasteful number, since it uses less digits than its factorization.

56202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702542 (or 702536 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 56202320 is about 7496.8206594529. The cubic root of 56202320 is about 383.0464259383.

Adding to 56202320 its reverse (2320265), we get a palindrome (58522585).

The spelling of 56202320 in words is "fifty-six million, two hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 702529 1405058 2810116 3512645 5620232 7025290 11240464 14050580 28101160 56202320