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23321006165 = 510942790837
BaseRepresentation
bin10101101110000010…
…100101000001010101
32020012021120212021002
4111232002211001111
5340230134144130
614414042033045
71453626165422
oct255602450125
966167525232
1023321006165
119988111116
12462a1a8785
132278733342
1411b33acd49
159175bcb45
hex56e0a5055

23321006165 has 8 divisors (see below), whose sum is σ = 28241953080. Its totient is φ = 18485641152.

The previous prime is 23321006053. The next prime is 23321006167. The reversal of 23321006165 is 56160012332.

It can be written as a sum of positive squares in 4 ways, for example, as 1722001009 + 21599005156 = 41497^2 + 146966^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23321006165 - 212 = 23321002069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23321006167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21394874 + ... + 21395963.

It is an arithmetic number, because the mean of its divisors is an integer number (3530244135).

Almost surely, 223321006165 is an apocalyptic number.

It is an amenable number.

23321006165 is a deficient number, since it is larger than the sum of its proper divisors (4920946915).

23321006165 is a wasteful number, since it uses less digits than its factorization.

23321006165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42790951.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 23321006165 its reverse (56160012332), we get a palindrome (79481018497).

The spelling of 23321006165 in words is "twenty-three billion, three hundred twenty-one million, six thousand, one hundred sixty-five".

Divisors: 1 5 109 545 42790837 213954185 4664201233 23321006165