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23111404453 = 149216171777
BaseRepresentation
bin10101100001100011…
…000000101110100101
32012122200011222202201
4111201203000232211
5334313004420303
614341153334501
71445502460624
oct254143005645
965580158681
1023111404453
11988a870265
12458bb67431
132244196867
14119360b6bb
15903eb881d
hex5618c0ba5

23111404453 has 8 divisors (see below), whose sum is σ = 23277605400. Its totient is φ = 22945351680.

The previous prime is 23111404447. The next prime is 23111404493. The reversal of 23111404453 is 35440411132.

It can be written as a sum of positive squares in 4 ways, for example, as 2457978084 + 20653426369 = 49578^2 + 143713^2 .

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 23111404453 - 29 = 23111403941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111404493) 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, 286101 + ... + 357877.

It is an arithmetic number, because the mean of its divisors is an integer number (2909700675).

Almost surely, 223111404453 is an apocalyptic number.

It is an amenable number.

23111404453 is a deficient number, since it is larger than the sum of its proper divisors (166200947).

23111404453 is a wasteful number, since it uses less digits than its factorization.

23111404453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74087.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 23111404453 its reverse (35440411132), we get a palindrome (58551815585).

The spelling of 23111404453 in words is "twenty-three billion, one hundred eleven million, four hundred four thousand, four hundred fifty-three".

Divisors: 1 149 2161 71777 321989 10694773 155110097 23111404453