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23212000001 = 101293229157
BaseRepresentation
bin10101100111100010…
…110000001100000001
32012220200110202220202
4111213202300030001
5340014233000001
614355145414545
71451133513251
oct254742601401
965820422822
1023212000001
119931629183
1245b979a455
13225bc88458
1411a2b15961
1590cc3996b
hex5678b0301

23212000001 has 4 divisors (see below), whose sum is σ = 23212330452. Its totient is φ = 23211669552.

The previous prime is 23211999973. The next prime is 23212000013. The reversal of 23212000001 is 10000021232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 19775109376 + 3436890625 = 140624^2 + 58625^2 .

It is a cyclic number.

It is not a de Polignac number, because 23212000001 - 226 = 23144891137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23212000501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13286 + ... + 215871.

It is an arithmetic number, because the mean of its divisors is an integer number (5803082613).

Almost surely, 223212000001 is an apocalyptic number.

It is an amenable number.

23212000001 is a deficient number, since it is larger than the sum of its proper divisors (330451).

23212000001 is a wasteful number, since it uses less digits than its factorization.

23212000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330450.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 23212000001 its reverse (10000021232), we get a palindrome (33212021233).

The spelling of 23212000001 in words is "twenty-three billion, two hundred twelve million, one", and thus it is an aban number.

Divisors: 1 101293 229157 23212000001