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20950300 = 225271732
BaseRepresentation
bin100111111101…
…0110100011100
31110102101102001
41033322310130
520330402200
62025012044
7343034410
oct117726434
943371361
1020950300
111090a2a8
127024024
134456b37
142ad4d40
151c8c76a
hex13fad1c

20950300 has 54 divisors (see below), whose sum is σ = 52258808. Its totient is φ = 7141440.

The previous prime is 20950289. The next prime is 20950337. The reversal of 20950300 is 305902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 121014 + ... + 121186.

Almost surely, 220950300 is an apocalyptic number.

20950300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20950300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26129404).

20950300 is an abundant number, since it is smaller than the sum of its proper divisors (31308508).

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

20950300 is a wasteful number, since it uses less digits than its factorization.

20950300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 20950300 is about 4577.1497681417. The cubic root of 20950300 is about 275.6745972487.

The spelling of 20950300 in words is "twenty million, nine hundred fifty thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 173 175 346 350 692 700 865 1211 1730 2422 3460 4325 4844 6055 8650 12110 17300 24220 29929 30275 59858 60550 119716 121100 149645 209503 299290 419006 598580 748225 838012 1047515 1496450 2095030 2992900 4190060 5237575 10475150 20950300