Base | Representation |
---|---|
bin | 111010010111… |
… | …1111110000110 |
3 | 2010120220102120 |
4 | 1310233332012 |
5 | 30313331230 |
6 | 3011550410 |
7 | 521065650 |
oct | 164577606 |
9 | 63526376 |
10 | 30605190 |
11 | 16304150 |
12 | a2bb406 |
13 | 64575a5 |
14 | 40c96d0 |
15 | 2a48310 |
hex | 1d2ff86 |
30605190 has 64 divisors (see below), whose sum is σ = 91584000. Its totient is φ = 6359040.
The previous prime is 30605173. The next prime is 30605209. The reversal of 30605190 is 9150603.
It is a super-2 number, since 2×306051902 = 1873355309872200, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30605190.
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, 4315 + ... + 8934.
It is an arithmetic number, because the mean of its divisors is an integer number (1431000).
Almost surely, 230605190 is an apocalyptic number.
30605190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30605190 is an abundant number, since it is smaller than the sum of its proper divisors (60978810).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30605190 is a wasteful number, since it uses less digits than its factorization.
30605190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13277.
The product of its (nonzero) digits is 810, while the sum is 24.
The square root of 30605190 is about 5532.1957666012. The cubic root of 30605190 is about 312.7987628128.
Adding to 30605190 its reverse (9150603), we get a palindrome (39755793).
The spelling of 30605190 in words is "thirty million, six hundred five thousand, one hundred ninety".
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