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224202020 = 22571601443
BaseRepresentation
bin11010101110100…
…00110100100100
3120121212122100112
431113100310210
5424343431040
634125232152
75361454130
oct1527206444
9517778315
10224202020
11105613329
1263102658
13375ac223
1421ac23c0
1514a3a365
hexd5d0d24

224202020 has 24 divisors (see below), whose sum is σ = 538085184. Its totient is φ = 76869216.

The previous prime is 224201993. The next prime is 224202029. The reversal of 224202020 is 20202422.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 224201986 and 224202004.

It is not an unprimeable number, because it can be changed into a prime (224202029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800582 + ... + 800861.

It is an arithmetic number, because the mean of its divisors is an integer number (22420216).

Almost surely, 2224202020 is an apocalyptic number.

224202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224202020 is an abundant number, since it is smaller than the sum of its proper divisors (313883164).

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

224202020 is a wasteful number, since it uses less digits than its factorization.

224202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601459 (or 1601457 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 224202020 is about 14973.3770406011. The cubic root of 224202020 is about 607.5003144280.

Adding to 224202020 its reverse (20202422), we get a palindrome (244404442).

The spelling of 224202020 in words is "two hundred twenty-four million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1601443 3202886 6405772 8007215 11210101 16014430 22420202 32028860 44840404 56050505 112101010 224202020