Search a number
-
+
23212478814 = 237552678067
BaseRepresentation
bin10101100111100100…
…100101000101011110
32012220201101002201120
4111213210211011132
5340014343310224
614355203551410
71451140546230
oct254744450536
965821332646
1023212478814
119931925998
1245b998b566
13225c0c5385
1411a2bdc250
1590ccd1779
hex56792515e

23212478814 has 16 divisors (see below), whose sum is σ = 53057094528. Its totient is φ = 6632136792.

The previous prime is 23212478813. The next prime is 23212478819. The reversal of 23212478814 is 41887421232.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 552678067 = 23212478814 / (2 + 3 + 2 + 1 + 2 + 4 + 7 + 8 + 8 + 1 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212478813) 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, 276338992 + ... + 276339075.

It is an arithmetic number, because the mean of its divisors is an integer number (3316068408).

Almost surely, 223212478814 is an apocalyptic number.

23212478814 is an abundant number, since it is smaller than the sum of its proper divisors (29844615714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23212478814 is a wasteful number, since it uses less digits than its factorization.

23212478814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552678079.

The product of its digits is 172032, while the sum is 42.

The spelling of 23212478814 in words is "twenty-three billion, two hundred twelve million, four hundred seventy-eight thousand, eight hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 552678067 1105356134 1658034201 3316068402 3868746469 7737492938 11606239407 23212478814