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229130220 = 223511347167
BaseRepresentation
bin11011010100000…
…11111111101100
3120222011000120110
431222003333230
5432124131340
634423020020
75451401064
oct1552037754
9528130513
10229130220
11108379a20
126489a610
1338616417
14226063a4
15151b0680
hexda83fec

229130220 has 48 divisors (see below), whose sum is σ = 699890688. Its totient is φ = 55546560.

The previous prime is 229130219. The next prime is 229130221. The reversal of 229130220 is 22031922.

It is an interprime number because it is at equal distance from previous prime (229130219) and next prime (229130221).

It is not an unprimeable number, because it can be changed into a prime (229130221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172924 + ... + 174243.

It is an arithmetic number, because the mean of its divisors is an integer number (14581056).

Almost surely, 2229130220 is an apocalyptic number.

229130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229130220 is an abundant number, since it is smaller than the sum of its proper divisors (470760468).

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

229130220 is a wasteful number, since it uses less digits than its factorization.

229130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347190 (or 347188 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 229130220 is about 15137.0479288400. The cubic root of 229130220 is about 611.9192618511.

The spelling of 229130220 in words is "two hundred twenty-nine million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 347167 694334 1041501 1388668 1735835 2083002 3471670 3818837 4166004 5207505 6943340 7637674 10415010 11456511 15275348 19094185 20830020 22913022 38188370 45826044 57282555 76376740 114565110 229130220