Base | Representation |
---|---|
bin | 111011000100… |
… | …1111111000111 |
3 | 2011021122012022 |
4 | 1312021333013 |
5 | 30412131040 |
6 | 3023513355 |
7 | 524162621 |
oct | 166117707 |
9 | 64248168 |
10 | 30973895 |
11 | 16536167 |
12 | a45885b |
13 | 6556364 |
14 | 4183c11 |
15 | 2abc6b5 |
hex | 1d89fc7 |
30973895 has 12 divisors (see below), whose sum is σ = 39193560. Its totient is φ = 23433840.
The previous prime is 30973883. The next prime is 30973907. The reversal of 30973895 is 59837903.
It is an interprime number because it is at equal distance from previous prime (30973883) and next prime (30973907).
It is not a de Polignac number, because 30973895 - 210 = 30972871 is a prime.
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, 53960 + ... + 54530.
It is an arithmetic number, because the mean of its divisors is an integer number (3266130).
Almost surely, 230973895 is an apocalyptic number.
30973895 is a deficient number, since it is larger than the sum of its proper divisors (8219665).
30973895 is an frugal number, since it uses more digits than its factorization.
30973895 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1166 (or 595 counting only the distinct ones).
The product of its (nonzero) digits is 204120, while the sum is 44.
The square root of 30973895 is about 5565.4195708859. The cubic root of 30973895 is about 314.0498622589.
The spelling of 30973895 in words is "thirty million, nine hundred seventy-three thousand, eight hundred ninety-five".
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