Base | Representation |
---|---|
bin | 111001010000… |
… | …1111011010010 |
3 | 2002111100022222 |
4 | 1302201323102 |
5 | 30141222003 |
6 | 2551301042 |
7 | 513123500 |
oct | 162417322 |
9 | 62440288 |
10 | 30023378 |
11 | 15a47010 |
12 | a07a782 |
13 | 62b2818 |
14 | 3db7670 |
15 | 2980c38 |
hex | 1ca1ed2 |
30023378 has 24 divisors (see below), whose sum is σ = 57152304. Its totient is φ = 11697000.
The previous prime is 30023369. The next prime is 30023431. The reversal of 30023378 is 87332003.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12848 + ... + 15003.
It is an arithmetic number, because the mean of its divisors is an integer number (2381346).
Almost surely, 230023378 is an apocalyptic number.
30023378 is a deficient number, since it is larger than the sum of its proper divisors (27128926).
30023378 is a wasteful number, since it uses less digits than its factorization.
30023378 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27878 (or 27871 counting only the distinct ones).
The product of its (nonzero) digits is 3024, while the sum is 26.
The square root of 30023378 is about 5479.3592691117. The cubic root of 30023378 is about 310.8039417296.
It can be divided in two parts, 3002 and 3378, that multiplied together give a triangular number (10140756 = T4503).
The spelling of 30023378 in words is "thirty million, twenty-three thousand, three hundred seventy-eight".
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