Base | Representation |
---|---|
bin | 111010000101… |
… | …1011010111110 |
3 | 2010022022001222 |
4 | 1310023122332 |
5 | 30244033421 |
6 | 3004433342 |
7 | 516603335 |
oct | 164133276 |
9 | 63268058 |
10 | 30455486 |
11 | 16211726 |
12 | a248852 |
13 | 64043c9 |
14 | 408ad1c |
15 | 2a18cab |
hex | 1d0b6be |
30455486 has 4 divisors (see below), whose sum is σ = 45683232. Its totient is φ = 15227742.
The previous prime is 30455479. The next prime is 30455501. The reversal of 30455486 is 68455403.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68455403 = 199 ⋅343997.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7613870 + ... + 7613873.
It is an arithmetic number, because the mean of its divisors is an integer number (11420808).
Almost surely, 230455486 is an apocalyptic number.
30455486 is a deficient number, since it is larger than the sum of its proper divisors (15227746).
30455486 is a wasteful number, since it uses less digits than its factorization.
30455486 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15227745.
The product of its (nonzero) digits is 57600, while the sum is 35.
The square root of 30455486 is about 5518.6489288593. The cubic root of 30455486 is about 312.2879149764.
The spelling of 30455486 in words is "thirty million, four hundred fifty-five thousand, four hundred eighty-six".
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