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224212020 = 22353736867
BaseRepresentation
bin11010101110100…
…11010000110100
3120121220011001220
431113103100310
5424344241040
634125350340
75361525234
oct1527232064
9517804056
10224212020
1110561a89a
12631083b0
13375b3946
1421ac5cc4
1514a3d2d0
hexd5d3434

224212020 has 24 divisors (see below), whose sum is σ = 627793824. Its totient is φ = 59789856.

The previous prime is 224212013. The next prime is 224212049. The reversal of 224212020 is 20212422.

224212020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868374 + ... + 1868493.

It is an arithmetic number, because the mean of its divisors is an integer number (26158076).

Almost surely, 2224212020 is an apocalyptic number.

224212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224212020 is an abundant number, since it is smaller than the sum of its proper divisors (403581804).

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

224212020 is a wasteful number, since it uses less digits than its factorization.

224212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736879 (or 3736877 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 224212020 is about 14973.7109628843. The cubic root of 224212020 is about 607.5093463312.

Adding to 224212020 its reverse (20212422), we get a palindrome (244424442).

The spelling of 224212020 in words is "two hundred twenty-four million, two hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3736867 7473734 11210601 14947468 18684335 22421202 37368670 44842404 56053005 74737340 112106010 224212020