Search a number
-
+
113251321 = 402728123
BaseRepresentation
bin1101100000000…
…01001111111001
321220002202121101
412300001033321
5212443020241
615123211401
72543422531
oct660011771
9256082541
10113251321
1158a22437
1231b16b61
131a603221
14110804c1
159e20e31
hex6c013f9

113251321 has 4 divisors (see below), whose sum is σ = 113283472. Its totient is φ = 113219172.

The previous prime is 113251291. The next prime is 113251337. The reversal of 113251321 is 123152311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113251321 - 25 = 113251289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113251921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10035 + ... + 18088.

It is an arithmetic number, because the mean of its divisors is an integer number (28320868).

Almost surely, 2113251321 is an apocalyptic number.

It is an amenable number.

113251321 is a deficient number, since it is larger than the sum of its proper divisors (32151).

113251321 is an equidigital number, since it uses as much as digits as its factorization.

113251321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32150.

The product of its digits is 180, while the sum is 19.

The square root of 113251321 is about 10641.9603927096. The cubic root of 113251321 is about 483.8169642914.

The spelling of 113251321 in words is "one hundred thirteen million, two hundred fifty-one thousand, three hundred twenty-one".

Divisors: 1 4027 28123 113251321