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23001322211 = 722411947779
BaseRepresentation
bin10101011010111111…
…000101001011100011
32012101000001020022122
4111122333011023203
5334101314302321
614322222054455
71442665004300
oct253277051343
965330036278
1023001322211
1198337128aa
12455b11a42b
132227432c3a
141182b540a7
158e94c18ab
hex55afc52e3

23001322211 has 12 divisors (see below), whose sum is σ = 26867677320. Its totient is φ = 19633602240.

The previous prime is 23001322199. The next prime is 23001322217. The reversal of 23001322211 is 11222310032.

It is not a de Polignac number, because 23001322211 - 26 = 23001322147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23001322211.

It is not an unprimeable number, because it can be changed into a prime (23001322217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 962081 + ... + 985698.

It is an arithmetic number, because the mean of its divisors is an integer number (2238973110).

Almost surely, 223001322211 is an apocalyptic number.

23001322211 is a deficient number, since it is larger than the sum of its proper divisors (3866355109).

23001322211 is a wasteful number, since it uses less digits than its factorization.

23001322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948034 (or 1948027 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23001322211 its reverse (11222310032), we get a palindrome (34223632243).

The spelling of 23001322211 in words is "twenty-three billion, one million, three hundred twenty-two thousand, two hundred eleven".

Divisors: 1 7 49 241 1687 11809 1947779 13634453 95441171 469414739 3285903173 23001322211