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20793950 = 252415879
BaseRepresentation
bin100111101010…
…0101001011110
31110010102221022
41033110221132
520310401300
62021404142
7341513522
oct117245136
943112838
1020793950
1110812891
126b69652
134400918
142a93d82
151c5b285
hex13d4a5e

20793950 has 12 divisors (see below), whose sum is σ = 38676840. Its totient is φ = 8317560.

The previous prime is 20793947. The next prime is 20793953. The reversal of 20793950 is 5939702.

It is an interprime number because it is at equal distance from previous prime (20793947) and next prime (20793953).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20793950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20793953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207890 + ... + 207989.

It is an arithmetic number, because the mean of its divisors is an integer number (3223070).

Almost surely, 220793950 is an apocalyptic number.

20793950 is a deficient number, since it is larger than the sum of its proper divisors (17882890).

20793950 is a wasteful number, since it uses less digits than its factorization.

20793950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415891 (or 415886 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 20793950 is about 4560.0383770315. The cubic root of 20793950 is about 274.9871068335.

The spelling of 20793950 in words is "twenty million, seven hundred ninety-three thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 415879 831758 2079395 4158790 10396975 20793950