Base | Representation |
---|---|
bin | 10001010011111… |
… | …01110111011000 |
3 | 101010020220001200 |
4 | 20221331313120 |
5 | 244134002112 |
6 | 22224314200 |
7 | 3412225050 |
oct | 1051756730 |
9 | 333226050 |
10 | 145219032 |
11 | 74a77232 |
12 | 40772960 |
13 | 24116a2a |
14 | 15402560 |
15 | cb37cdc |
hex | 8a7ddd8 |
145219032 has 144 divisors (see below), whose sum is σ = 477962160. Its totient is φ = 39011328.
The previous prime is 145219031. The next prime is 145219057. The reversal of 145219032 is 230912541.
It is a junction number, because it is equal to n+sod(n) for n = 145218987 and 145219005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145219031) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 145158 + ... + 146154.
Almost surely, 2145219032 is an apocalyptic number.
145219032 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 145219032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238981080).
145219032 is an abundant number, since it is smaller than the sum of its proper divisors (332743128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145219032 is a wasteful number, since it uses less digits than its factorization.
145219032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1050 (or 1026 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 27.
The square root of 145219032 is about 12050.6859555795. The cubic root of 145219032 is about 525.6231837872.
The spelling of 145219032 in words is "one hundred forty-five million, two hundred nineteen thousand, thirty-two".
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