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223270242 = 231314919211
BaseRepresentation
bin11010100111011…
…01010101100010
3120120010022012020
431103231111202
5424124121432
634053242310
75350523436
oct1523552542
9516108166
10223270242
11105037268
1262933396
1337344090
142191c9c6
151490422c
hexd4ed562

223270242 has 32 divisors (see below), whose sum is σ = 484142400. Its totient is φ = 68233920.

The previous prime is 223270241. The next prime is 223270381. The reversal of 223270242 is 242072322.

It is a happy number.

It is a super-3 number, since 3×2232702423 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223270241) 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, 2017 + ... + 21227.

It is an arithmetic number, because the mean of its divisors is an integer number (15129450).

Almost surely, 2223270242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223270242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242071200).

223270242 is an abundant number, since it is smaller than the sum of its proper divisors (260872158).

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

223270242 is a wasteful number, since it uses less digits than its factorization.

223270242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19378.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 223270242 is about 14942.2301548330. The cubic root of 223270242 is about 606.6575604773.

The spelling of 223270242 in words is "two hundred twenty-three million, two hundred seventy thousand, two hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 149 298 447 894 1937 3874 5811 11622 19211 38422 57633 115266 249743 499486 749229 1498458 2862439 5724878 8587317 17174634 37211707 74423414 111635121 223270242