Base | Representation |
---|---|
bin | 10001010010110… |
… | …11101000101110 |
3 | 101002222202202000 |
4 | 20221123220232 |
5 | 244120010310 |
6 | 22221313130 |
7 | 3411102231 |
oct | 1051335056 |
9 | 332882660 |
10 | 145078830 |
11 | 74990966 |
12 | 407057a6 |
13 | 24097c80 |
14 | 153a7418 |
15 | cb0b4c0 |
hex | 8a5ba2e |
145078830 has 64 divisors (see below), whose sum is σ = 416646720. Its totient is φ = 35710848.
The previous prime is 145078819. The next prime is 145078841. The reversal of 145078830 is 38870541.
145078830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (145078819) and next prime (145078841).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17157 + ... + 24176.
It is an arithmetic number, because the mean of its divisors is an integer number (6510105).
Almost surely, 2145078830 is an apocalyptic number.
145078830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
145078830 is an abundant number, since it is smaller than the sum of its proper divisors (271567890).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
145078830 is a wasteful number, since it uses less digits than its factorization.
145078830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41362 (or 41356 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 145078830 is about 12044.8673716235. The cubic root of 145078830 is about 525.4539746757.
The spelling of 145078830 in words is "one hundred forty-five million, seventy-eight thousand, eight hundred thirty".
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