Base | Representation |
---|---|
bin | 1101001001010… |
… | …0000101001000 |
3 | 10211202000120000 |
4 | 3102110011020 |
5 | 103103214423 |
6 | 5245403000 |
7 | 1236422055 |
oct | 322240510 |
9 | 124660500 |
10 | 55132488 |
11 | 29136944 |
12 | 16569460 |
13 | b564598 |
14 | 747202c |
15 | 4c90843 |
hex | 3494148 |
55132488 has 40 divisors (see below), whose sum is σ = 154423830. Its totient is φ = 18377280.
The previous prime is 55132487. The next prime is 55132489. The reversal of 55132488 is 88423155.
It is a happy number.
55132488 is a `hidden beast` number, since 551 + 3 + 24 + 88 = 666.
It is an interprime number because it is at equal distance from previous prime (55132487) and next prime (55132489).
It can be written as a sum of positive squares in only one way, i.e., 31337604 + 23794884 = 5598^2 + 4878^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (55132487) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41893 + ... + 43188.
Almost surely, 255132488 is an apocalyptic number.
It is an amenable number.
55132488 is an abundant number, since it is smaller than the sum of its proper divisors (99291342).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
55132488 is a wasteful number, since it uses less digits than its factorization.
55132488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 85099 (or 85086 counting only the distinct ones).
The product of its digits is 38400, while the sum is 36.
The square root of 55132488 is about 7425.1254534856. The cubic root of 55132488 is about 380.6003621607.
It can be divided in two parts, 5513 and 2488, that added together give a triangular number (8001 = T126).
The spelling of 55132488 in words is "fifty-five million, one hundred thirty-two thousand, four hundred eighty-eight".
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