Base | Representation |
---|---|
bin | 111010100010… |
… | …0110111010110 |
3 | 2010202020211100 |
4 | 1311010313112 |
5 | 30324101044 |
6 | 3013450530 |
7 | 521603322 |
oct | 165046726 |
9 | 63666740 |
10 | 30690774 |
11 | 16362484 |
12 | a340a46 |
13 | 648752a |
14 | 410c982 |
15 | 2a63869 |
hex | 1d44dd6 |
30690774 has 24 divisors (see below), whose sum is σ = 66771432. Its totient is φ = 10188000.
The previous prime is 30690767. The next prime is 30690799. The reversal of 30690774 is 47709603.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122 + ... + 7914.
It is an arithmetic number, because the mean of its divisors is an integer number (2782143).
Almost surely, 230690774 is an apocalyptic number.
30690774 is an abundant number, since it is smaller than the sum of its proper divisors (36080658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30690774 is a wasteful number, since it uses less digits than its factorization.
30690774 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7052 (or 7049 counting only the distinct ones).
The product of its (nonzero) digits is 31752, while the sum is 36.
The square root of 30690774 is about 5539.9254507620. The cubic root of 30690774 is about 313.0900604040.
The spelling of 30690774 in words is "thirty million, six hundred ninety thousand, seven hundred seventy-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •