Search a number
-
+
310220142 = 2351703357
BaseRepresentation
bin10010011111011…
…001010101101110
3210121201211000220
4102133121111232
51113404021032
650441032210
710454553621
oct2237312556
9717654026
10310220142
1114a124a91
1287a85666
134c36891b
142d2b3db8
151c37c12c
hex127d956e

310220142 has 8 divisors (see below), whose sum is σ = 620440296. Its totient is φ = 103406712.

The previous prime is 310220137. The next prime is 310220147. The reversal of 310220142 is 241022013.

310220142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (310220137) and next prime (310220147).

It is a sphenic number, since it is the product of 3 distinct primes.

310220142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310220147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25851673 + ... + 25851684.

It is an arithmetic number, because the mean of its divisors is an integer number (77555037).

Almost surely, 2310220142 is an apocalyptic number.

310220142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

310220142 is a wasteful number, since it uses less digits than its factorization.

310220142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51703362.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 310220142 is about 17613.0673648857. The cubic root of 310220142 is about 676.9501114885.

Adding to 310220142 its reverse (241022013), we get a palindrome (551242155).

The spelling of 310220142 in words is "three hundred ten million, two hundred twenty thousand, one hundred forty-two".

Divisors: 1 2 3 6 51703357 103406714 155110071 310220142