Base | Representation |
---|---|
bin | 111010111001… |
… | …0010101010101 |
3 | 2011002201022002 |
4 | 1311302111111 |
5 | 30401031023 |
6 | 3021445045 |
7 | 523310306 |
oct | 165622525 |
9 | 64081262 |
10 | 30877013 |
11 | 1647a3a2 |
12 | a410785 |
13 | 652122b |
14 | 415a7ad |
15 | 2a9db28 |
hex | 1d72555 |
30877013 has 8 divisors (see below), whose sum is σ = 31314816. Its totient is φ = 30442000.
The previous prime is 30877009. The next prime is 30877027. The reversal of 30877013 is 31077803.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30877013 - 22 = 30877009 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30877003) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30920 + ... + 31902.
It is an arithmetic number, because the mean of its divisors is an integer number (3914352).
Almost surely, 230877013 is an apocalyptic number.
It is an amenable number.
30877013 is a deficient number, since it is larger than the sum of its proper divisors (437803).
30877013 is a wasteful number, since it uses less digits than its factorization.
30877013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1395.
The product of its (nonzero) digits is 3528, while the sum is 29.
The square root of 30877013 is about 5556.7088280744. The cubic root of 30877013 is about 313.7220856315.
The spelling of 30877013 in words is "thirty million, eight hundred seventy-seven thousand, thirteen".
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