Search a number
-
+
23141531155 = 531293509557
BaseRepresentation
bin10101100011010101…
…111011111000010011
32012201202212120211111
4111203111323320103
5334343212444110
614344151154151
71446316524601
oct254325737023
965652776744
1023141531155
1198a5877966
12459a075957
13224a4b4402
141197610871
15906969e8a
hex56357be13

23141531155 has 16 divisors (see below), whose sum is σ = 28763529984. Its totient is φ = 17854842240.

The previous prime is 23141531113. The next prime is 23141531173. The reversal of 23141531155 is 55113514132.

It is not a de Polignac number, because 23141531155 - 211 = 23141529107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209364 + ... + 300193.

It is an arithmetic number, because the mean of its divisors is an integer number (1797720624).

Almost surely, 223141531155 is an apocalyptic number.

23141531155 is a deficient number, since it is larger than the sum of its proper divisors (5621998829).

23141531155 is a wasteful number, since it uses less digits than its factorization.

23141531155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509886.

The product of its digits is 9000, while the sum is 31.

The spelling of 23141531155 in words is "twenty-three billion, one hundred forty-one million, five hundred thirty-one thousand, one hundred fifty-five".

Divisors: 1 5 31 155 293 1465 9083 45415 509557 2547785 15796267 78981335 149300201 746501005 4628306231 23141531155