Base | Representation |
---|---|
bin | 111001100111… |
… | …1110101010111 |
3 | 2002211220021022 |
4 | 1303033311113 |
5 | 30213231130 |
6 | 2555311355 |
7 | 514535633 |
oct | 163176527 |
9 | 62756238 |
10 | 30211415 |
11 | 16065313 |
12 | a14b55b |
13 | 634a2a0 |
14 | 4025dc3 |
15 | 29bb7e5 |
hex | 1ccfd57 |
30211415 has 16 divisors (see below), whose sum is σ = 39583488. Its totient is φ = 22000896.
The previous prime is 30211411. The next prime is 30211427. The reversal of 30211415 is 51411203.
It is a cyclic number.
It is not a de Polignac number, because 30211415 - 22 = 30211411 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30211393 and 30211402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30211411) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1562 + ... + 7928.
It is an arithmetic number, because the mean of its divisors is an integer number (2473968).
Almost surely, 230211415 is an apocalyptic number.
30211415 is a deficient number, since it is larger than the sum of its proper divisors (9372073).
30211415 is a wasteful number, since it uses less digits than its factorization.
30211415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6458.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 30211415 is about 5496.4911534542. The cubic root of 30211415 is about 311.4514488647.
Adding to 30211415 its reverse (51411203), we get a palindrome (81622618).
The spelling of 30211415 in words is "thirty million, two hundred eleven thousand, four hundred fifteen".
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