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220323234 = 23376131619
BaseRepresentation
bin11010010000111…
…01110110100010
3120100120120122210
431020131312202
5422400320414
633510142550
75313500535
oct1510356642
9510516583
10220323234
1110340411a
1261951a56
13368518a1
1421392a1c
1514520e59
hexd21dda2

220323234 has 32 divisors (see below), whose sum is σ = 453574080. Its totient is φ = 71295552.

The previous prime is 220323223. The next prime is 220323239. The reversal of 220323234 is 432323022.

220323234 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 self number, because there is not a number n which added to its sum of digits gives 220323234.

It is not an unprimeable number, because it can be changed into a prime (220323239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135277 + ... + 136895.

It is an arithmetic number, because the mean of its divisors is an integer number (14174190).

Almost surely, 2220323234 is an apocalyptic number.

220323234 is an abundant number, since it is smaller than the sum of its proper divisors (233250846).

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

220323234 is a wasteful number, since it uses less digits than its factorization.

220323234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 220323234 is about 14843.2891907421. The cubic root of 220323234 is about 603.9765808939.

Adding to 220323234 its reverse (432323022), we get a palindrome (652646256).

The spelling of 220323234 in words is "two hundred twenty million, three hundred twenty-three thousand, two hundred thirty-four".

Divisors: 1 2 3 6 37 74 111 222 613 1226 1619 1839 3238 3678 4857 9714 22681 45362 59903 68043 119806 136086 179709 359418 992447 1984894 2977341 5954682 36720539 73441078 110161617 220323234