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4312442 = 22156221
BaseRepresentation
bin10000011100110101111010
322010002120002
4100130311322
52100444232
6232233002
751440501
oct20346572
98102502
104312442
112486002
12153b762
13b7cb54
14803838
155a2b62
hex41cd7a

4312442 has 4 divisors (see below), whose sum is σ = 6468666. Its totient is φ = 2156220.

The previous prime is 4312433. The next prime is 4312447. The reversal of 4312442 is 2442134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3500641 + 811801 = 1871^2 + 901^2 .

It is not an unprimeable number, because it can be changed into a prime (4312447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078109 + ... + 1078112.

Almost surely, 24312442 is an apocalyptic number.

4312442 is a deficient number, since it is larger than the sum of its proper divisors (2156224).

4312442 is a wasteful number, since it uses less digits than its factorization.

4312442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156223.

The product of its digits is 768, while the sum is 20.

The square root of 4312442 is about 2076.6420009236. The cubic root of 4312442 is about 162.7700220687.

Adding to 4312442 its reverse (2442134), we get a palindrome (6754576).

The spelling of 4312442 in words is "four million, three hundred twelve thousand, four hundred forty-two".

Divisors: 1 2 2156221 4312442