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4312290 = 235143743
BaseRepresentation
bin10000011100110011100010
322010002100110
4100130303202
52100443130
6232232150
751440163
oct20346342
98102313
104312290
112485984
12153b656
13b7ca68
1480376a
155a2ab0
hex41cce2

4312290 has 16 divisors (see below), whose sum is σ = 10349568. Its totient is φ = 1149936.

The previous prime is 4312283. The next prime is 4312291. The reversal of 4312290 is 922134.

It is not an unprimeable number, because it can be changed into a prime (4312291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71842 + ... + 71901.

It is an arithmetic number, because the mean of its divisors is an integer number (646848).

Almost surely, 24312290 is an apocalyptic number.

4312290 is an abundant number, since it is smaller than the sum of its proper divisors (6037278).

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

4312290 is a wasteful number, since it uses less digits than its factorization.

4312290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143753.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4312290 is about 2076.6054030557. The cubic root of 4312290 is about 162.7681096693.

The spelling of 4312290 in words is "four million, three hundred twelve thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 143743 287486 431229 718715 862458 1437430 2156145 4312290