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23003512213 = 112091228383
BaseRepresentation
bin10101011011000111…
…011011110110010101
32012101011011111102211
4111123013123312111
5334102344342323
614322341033421
71443022425163
oct253307336625
965334144384
1023003512213
119834979220
12455b9b5871
132227a1b9b6
141183164233
158e97a570d
hex55b1dbd95

23003512213 has 4 divisors (see below), whose sum is σ = 25094740608. Its totient is φ = 20912283820.

The previous prime is 23003512199. The next prime is 23003512219. The reversal of 23003512213 is 31221530032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23003512213 - 225 = 22969957781 is a prime.

It is a super-4 number, since 4×230035122134 (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003512219) 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, 1045614181 + ... + 1045614202.

It is an arithmetic number, because the mean of its divisors is an integer number (6273685152).

Almost surely, 223003512213 is an apocalyptic number.

It is an amenable number.

23003512213 is a deficient number, since it is larger than the sum of its proper divisors (2091228395).

23003512213 is a wasteful number, since it uses less digits than its factorization.

23003512213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091228394.

The product of its (nonzero) digits is 1080, while the sum is 22.

The spelling of 23003512213 in words is "twenty-three billion, three million, five hundred twelve thousand, two hundred thirteen".

Divisors: 1 11 2091228383 23003512213