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229182020 = 22511459101
BaseRepresentation
bin11011010100100…
…00101001000100
3120222020122121222
431222100221010
5432132311040
634424055512
75452005104
oct1552205104
9528218558
10229182020
11108404931
1264904598
1338633b82
142261b204
15151c0bb5
hexda90a44

229182020 has 12 divisors (see below), whose sum is σ = 481282284. Its totient is φ = 91672800.

The previous prime is 229182013. The next prime is 229182061. The reversal of 229182020 is 20281922.

It can be written as a sum of positive squares in 2 ways, for example, as 136983616 + 92198404 = 11704^2 + 9602^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5729531 + ... + 5729570.

It is an arithmetic number, because the mean of its divisors is an integer number (40106857).

Almost surely, 2229182020 is an apocalyptic number.

229182020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229182020 is an abundant number, since it is smaller than the sum of its proper divisors (252100264).

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

229182020 is a wasteful number, since it uses less digits than its factorization.

229182020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11459110 (or 11459108 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 229182020 is about 15138.7588659044. The cubic root of 229182020 is about 611.9653710453.

The spelling of 229182020 in words is "two hundred twenty-nine million, one hundred eighty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 11459101 22918202 45836404 57295505 114591010 229182020