Base | Representation |
---|---|
bin | 10001010010011… |
… | …10100011010000 |
3 | 101002220001012220 |
4 | 20221032203100 |
5 | 244111301412 |
6 | 22220221040 |
7 | 3410460042 |
oct | 1051164320 |
9 | 332801186 |
10 | 145025232 |
11 | 74954670 |
12 | 4069a780 |
13 | 24079761 |
14 | 15391a92 |
15 | caea68c |
hex | 8a4e8d0 |
145025232 has 160 divisors (see below), whose sum is σ = 439686144. Its totient is φ = 40704000.
The previous prime is 145025227. The next prime is 145025273. The reversal of 145025232 is 232520541.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 960357 + ... + 960507.
Almost surely, 2145025232 is an apocalyptic number.
145025232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 145025232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219843072).
145025232 is an abundant number, since it is smaller than the sum of its proper divisors (294660912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145025232 is a wasteful number, since it uses less digits than its factorization.
145025232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 297 (or 291 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 24.
The square root of 145025232 is about 12042.6422349915. The cubic root of 145025232 is about 525.3892587070.
Adding to 145025232 its reverse (232520541), we get a palindrome (377545773).
The spelling of 145025232 in words is "one hundred forty-five million, twenty-five thousand, two hundred thirty-two".
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