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23211223204 = 22132216115889
BaseRepresentation
bin10101100111011111…
…110010100010100100
32012220122000022100111
4111213133302202210
5340014033120304
614355121022404
71451124066451
oct254737624244
965818008314
1023211223204
1199311485a4
1245b9484a04
13225ba75a00
1411a2992828
1590cb34704
hex5677f28a4

23211223204 has 36 divisors (see below), whose sum is σ = 44007704580. Its totient is φ = 10707240960.

The previous prime is 23211223201. The next prime is 23211223249. The reversal of 23211223204 is 40232211232.

It can be written as a sum of positive squares in 6 ways, for example, as 4865062500 + 18346160704 = 69750^2 + 135448^2 .

It is not an unprimeable number, because it can be changed into a prime (23211223201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1452892 + ... + 1468780.

Almost surely, 223211223204 is an apocalyptic number.

It is an amenable number.

23211223204 is a deficient number, since it is larger than the sum of its proper divisors (20796481376).

23211223204 is a wasteful number, since it uses less digits than its factorization.

23211223204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18080 (or 18065 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 23211223204 its reverse (40232211232), we get a palindrome (63443434436).

The spelling of 23211223204 in words is "twenty-three billion, two hundred eleven million, two hundred twenty-three thousand, two hundred four".

Divisors: 1 2 4 13 26 52 169 338 676 2161 4322 8644 15889 28093 31778 56186 63556 112372 206557 365209 413114 730418 826228 1460836 2685241 5370482 10740964 34336129 68672258 137344516 446369677 892739354 1785478708 5802805801 11605611602 23211223204