Search a number
-
+
632448 = 273461
BaseRepresentation
bin10011010011010000000
31012010120000
42122122000
5130214243
621320000
75242605
oct2323200
91163500
10632448
113a2193
12266000
13191b3b
141266ac
15c75d3
hex9a680

632448 has 80 divisors (see below), whose sum is σ = 1913010. Its totient is φ = 207360.

The previous prime is 632447. The next prime is 632459. The reversal of 632448 is 844236.

It can be written as a sum of positive squares in only one way, i.e., 627264 + 5184 = 792^2 + 72^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (632447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10338 + ... + 10398.

632448 is a Friedman number, since it can be written as (8^3-24)*6^4, using all its digits and the basic arithmetic operations.

2632448 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 632448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956505).

632448 is an abundant number, since it is smaller than the sum of its proper divisors (1280562).

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

632448 is an equidigital number, since it uses as much as digits as its factorization.

632448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 66 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 632448 is about 795.2659932375. The cubic root of 632448 is about 85.8370811405.

The spelling of 632448 in words is "six hundred thirty-two thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 61 64 72 81 96 108 122 128 144 162 183 192 216 244 288 324 366 384 432 488 549 576 648 732 864 976 1098 1152 1296 1464 1647 1728 1952 2196 2592 2928 3294 3456 3904 4392 4941 5184 5856 6588 7808 8784 9882 10368 11712 13176 17568 19764 23424 26352 35136 39528 52704 70272 79056 105408 158112 210816 316224 632448