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20310950 = 2521136929
BaseRepresentation
bin100110101111…
…0101110100110
31102012220101102
41031132232212
520144422300
62003200102
7334432412
oct115365646
942186342
1020310950
1110512a10
126976032
134291b1a
1429a9d42
151bb30d5
hex135eba6

20310950 has 24 divisors (see below), whose sum is σ = 41213880. Its totient is φ = 7385600.

The previous prime is 20310947. The next prime is 20310973. The reversal of 20310950 is 5901302.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17915 + ... + 19014.

It is an arithmetic number, because the mean of its divisors is an integer number (1717245).

Almost surely, 220310950 is an apocalyptic number.

20310950 is an abundant number, since it is smaller than the sum of its proper divisors (20902930).

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

20310950 is a wasteful number, since it uses less digits than its factorization.

20310950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36952 (or 36947 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 20310950 is about 4506.7671339886. The cubic root of 20310950 is about 272.8412804494.

The spelling of 20310950 in words is "twenty million, three hundred ten thousand, nine hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 36929 73858 184645 369290 406219 812438 923225 1846450 2031095 4062190 10155475 20310950