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23113322220 = 22351533125127
BaseRepresentation
bin10101100001101010…
…010100111011101100
32012122210210102110010
4111201222110323230
5334314002302340
614341302413220
71445524666032
oct254152247354
965583712403
1023113322220
11989096009a
124590731210
1322446b8731
14119398a552
15904246b80
hex561a94eec

23113322220 has 48 divisors (see below), whose sum is σ = 64724099328. Its totient is φ = 6162905280.

The previous prime is 23113322191. The next prime is 23113322231. The reversal of 23113322220 is 2222331132.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 907297 + ... + 932423.

It is an arithmetic number, because the mean of its divisors is an integer number (1348418736).

Almost surely, 223113322220 is an apocalyptic number.

23113322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23113322220 is an abundant number, since it is smaller than the sum of its proper divisors (41610777108).

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

23113322220 is a wasteful number, since it uses less digits than its factorization.

23113322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40470 (or 40468 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23113322220 its reverse (2222331132), we get a palindrome (25335653352).

The spelling of 23113322220 in words is "twenty-three billion, one hundred thirteen million, three hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 15331 25127 30662 45993 50254 61324 75381 76655 91986 100508 125635 150762 153310 183972 229965 251270 301524 306620 376905 459930 502540 753810 919860 1507620 385222037 770444074 1155666111 1540888148 1926110185 2311332222 3852220370 4622664444 5778330555 7704440740 11556661110 23113322220