Base | Representation |
---|---|
bin | 11011100011001… |
… | …01110001000000 |
3 | 121002212021110211 |
4 | 31301211301000 |
5 | 433130303202 |
6 | 34533203504 |
7 | 5504230201 |
oct | 1561456100 |
9 | 532767424 |
10 | 231103552 |
11 | 1094a7579 |
12 | 65490594 |
13 | 38b57684 |
14 | 2299b5a8 |
15 | 154501d7 |
hex | dc65c40 |
231103552 has 56 divisors (see below), whose sum is σ = 486140760. Its totient is φ = 108810240.
The previous prime is 231103547. The next prime is 231103553. The reversal of 231103552 is 255301132.
It can be written as a sum of positive squares in 4 ways, for example, as 22127616 + 208975936 = 4704^2 + 14456^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231103553) 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, 74578 + ... + 77614.
It is an arithmetic number, because the mean of its divisors is an integer number (8681085).
Almost surely, 2231103552 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 231103552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243070380).
231103552 is an abundant number, since it is smaller than the sum of its proper divisors (255037208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231103552 is a wasteful number, since it uses less digits than its factorization.
231103552 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3119 (or 3109 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 22.
The square root of 231103552 is about 15202.0903825757. The cubic root of 231103552 is about 613.6709147687.
Adding to 231103552 its reverse (255301132), we get a palindrome (486404684).
It can be divided in two parts, 23110 and 3552, that added together give a palindrome (26662).
The spelling of 231103552 in words is "two hundred thirty-one million, one hundred three thousand, five hundred fifty-two".
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