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20746050 = 23521310639
BaseRepresentation
bin100111100100…
…0111101000010
31110001000020020
41033020331002
520302333200
62020354310
7341224053
oct117107502
943030206
1020746050
111078a8a6
126b45996
1343b4b90
142a8072a
151c4bea0
hex13c8f42

20746050 has 48 divisors (see below), whose sum is σ = 55413120. Its totient is φ = 5106240.

The previous prime is 20746031. The next prime is 20746051. The reversal of 20746050 is 5064702.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20746050.

It is not an unprimeable number, because it can be changed into a prime (20746051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3370 + ... + 7269.

It is an arithmetic number, because the mean of its divisors is an integer number (1154440).

Almost surely, 220746050 is an apocalyptic number.

20746050 is an abundant number, since it is smaller than the sum of its proper divisors (34667070).

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

20746050 is a wasteful number, since it uses less digits than its factorization.

20746050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10667 (or 10662 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20746050 is about 4554.7832001095. The cubic root of 20746050 is about 274.7757952192.

The spelling of 20746050 in words is "twenty million, seven hundred forty-six thousand, fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 195 325 390 650 975 1950 10639 21278 31917 53195 63834 106390 138307 159585 265975 276614 319170 414921 531950 691535 797925 829842 1383070 1595850 2074605 3457675 4149210 6915350 10373025 20746050