Base | Representation |
---|---|
bin | 111010101000… |
… | …1010110011000 |
3 | 2010211211222100 |
4 | 1311101112120 |
5 | 30332220122 |
6 | 3014523400 |
7 | 522205365 |
oct | 165212630 |
9 | 63754870 |
10 | 30741912 |
11 | 16397943 |
12 | a366560 |
13 | 64a48a6 |
14 | 412346c |
15 | 2a73aac |
hex | 1d51598 |
30741912 has 24 divisors (see below), whose sum is σ = 83259540. Its totient is φ = 10247280.
The previous prime is 30741911. The next prime is 30741913. The reversal of 30741912 is 21914703.
It is an interprime number because it is at equal distance from previous prime (30741911) and next prime (30741913).
It is a tau number, because it is divible by the number of its divisors (24).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30741911) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213414 + ... + 213557.
Almost surely, 230741912 is an apocalyptic number.
It is an amenable number.
30741912 is an abundant number, since it is smaller than the sum of its proper divisors (52517628).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30741912 is a wasteful number, since it uses less digits than its factorization.
30741912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 426983 (or 426976 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 30741912 is about 5544.5389348439. The cubic root of 30741912 is about 313.2638576408.
The spelling of 30741912 in words is "thirty million, seven hundred forty-one thousand, nine hundred twelve".
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