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23203210033 = 169313705381
BaseRepresentation
bin10101100111000001…
…001110001100110001
32012220001221012100101
4111213001032030301
5340010010210113
614354233152401
71450666013443
oct254701161461
965801835311
1023203210033
119927675143
1245b685b701
13225a1cb5a3
1411a18a8493
1590c0a02dd
hex56704e331

23203210033 has 4 divisors (see below), whose sum is σ = 23216917108. Its totient is φ = 23189502960.

The previous prime is 23203210031. The next prime is 23203210067. The reversal of 23203210033 is 33001230232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7559954704 + 15643255329 = 86948^2 + 125073^2 .

It is a cyclic number.

It is not a de Polignac number, because 23203210033 - 21 = 23203210031 is a prime.

It is a super-2 number, since 2×232032100332 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23203210031) 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, 6850998 + ... + 6854383.

It is an arithmetic number, because the mean of its divisors is an integer number (5804229277).

Almost surely, 223203210033 is an apocalyptic number.

It is an amenable number.

23203210033 is a deficient number, since it is larger than the sum of its proper divisors (13707075).

23203210033 is a wasteful number, since it uses less digits than its factorization.

23203210033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13707074.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 23203210033 its reverse (33001230232), we get a palindrome (56204440265).

The spelling of 23203210033 in words is "twenty-three billion, two hundred three million, two hundred ten thousand, thirty-three".

Divisors: 1 1693 13705381 23203210033