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23001131091 = 314815176937
BaseRepresentation
bin10101011010111110…
…010110100001010011
32012100222200112011010
4111122332112201103
5334101242143331
614322214022003
71442663250141
oct253276264123
965328615133
1023001131091
1198335a2254
12455b047903
132227396c53
141182b04591
158e9484e46
hex55af96853

23001131091 has 8 divisors (see below), whose sum is σ = 30688888464. Its totient is φ = 15323730560.

The previous prime is 23001131089. The next prime is 23001131099. The reversal of 23001131091 is 19013110032.

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 23001131091 - 21 = 23001131089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23001131099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2584026 + ... + 2592911.

It is an arithmetic number, because the mean of its divisors is an integer number (3836111058).

Almost surely, 223001131091 is an apocalyptic number.

23001131091 is a deficient number, since it is larger than the sum of its proper divisors (7687757373).

23001131091 is a wasteful number, since it uses less digits than its factorization.

23001131091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178421.

The product of its (nonzero) digits is 162, while the sum is 21.

The spelling of 23001131091 in words is "twenty-three billion, one million, one hundred thirty-one thousand, ninety-one".

Divisors: 1 3 1481 4443 5176937 15530811 7667043697 23001131091