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23043122155 = 511340784287
BaseRepresentation
bin10101011101011110…
…100010001111101011
32012110220200220001201
4111131132202033223
5334143014402110
614330314025031
71444013210104
oct253536421753
965426626051
1023043122155
119855272809
124571118177
132232ca9b31
1411885153ab
158ececbb3a
hex55d7a23eb

23043122155 has 8 divisors (see below), whose sum is σ = 27896452992. Its totient is φ = 18271360128.

The previous prime is 23043122153. The next prime is 23043122173. The reversal of 23043122155 is 55122134032.

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 23043122155 - 21 = 23043122153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23043122153) 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, 20391579 + ... + 20392708.

It is an arithmetic number, because the mean of its divisors is an integer number (3487056624).

Almost surely, 223043122155 is an apocalyptic number.

23043122155 is a deficient number, since it is larger than the sum of its proper divisors (4853330837).

23043122155 is a wasteful number, since it uses less digits than its factorization.

23043122155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40784405.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 23043122155 its reverse (55122134032), we get a palindrome (78165256187).

The spelling of 23043122155 in words is "twenty-three billion, forty-three million, one hundred twenty-two thousand, one hundred fifty-five".

Divisors: 1 5 113 565 40784287 203921435 4608624431 23043122155