Base | Representation |
---|---|
bin | 111010000100… |
… | …0000001011001 |
3 | 2010021120222020 |
4 | 1310020001121 |
5 | 30243112221 |
6 | 3004245053 |
7 | 516514623 |
oct | 164100131 |
9 | 63246866 |
10 | 30441561 |
11 | 16202217 |
12 | a240789 |
13 | 63cac77 |
14 | 4085c13 |
15 | 2a14ac6 |
hex | 1d08059 |
30441561 has 8 divisors (see below), whose sum is σ = 41988480. Its totient is φ = 19594512.
The previous prime is 30441559. The next prime is 30441583. The reversal of 30441561 is 16514403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30441561 - 21 = 30441559 is a prime.
It is a super-2 number, since 2×304415612 = 1853377272233442, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30442561) 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, 174865 + ... + 175038.
It is an arithmetic number, because the mean of its divisors is an integer number (5248560).
Almost surely, 230441561 is an apocalyptic number.
It is an amenable number.
30441561 is a deficient number, since it is larger than the sum of its proper divisors (11546919).
30441561 is a wasteful number, since it uses less digits than its factorization.
30441561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 349935.
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 30441561 is about 5517.3871533544. The cubic root of 30441561 is about 312.2403124728.
Adding to 30441561 its reverse (16514403), we get a palindrome (46955964).
The spelling of 30441561 in words is "thirty million, four hundred forty-one thousand, five hundred sixty-one".
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