Base | Representation |
---|---|
bin | 111010100011… |
… | …0100000001101 |
3 | 2010202121000220 |
4 | 1311012200031 |
5 | 30324304420 |
6 | 3013541553 |
7 | 521632020 |
oct | 165064015 |
9 | 63677026 |
10 | 30697485 |
11 | 16367525 |
12 | a3448b9 |
13 | 648a5c0 |
14 | 41111b7 |
15 | 2a65840 |
hex | 1d4680d |
30697485 has 64 divisors (see below), whose sum is σ = 61974528. Its totient is φ = 12628224.
The previous prime is 30697423. The next prime is 30697487. The reversal of 30697485 is 58479603.
It is a happy number.
It is not a de Polignac number, because 30697485 - 26 = 30697421 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30697487) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58434 + ... + 58956.
It is an arithmetic number, because the mean of its divisors is an integer number (968352).
Almost surely, 230697485 is an apocalyptic number.
30697485 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30697485 is an abundant number, since it is smaller than the sum of its proper divisors (31277043).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30697485 is a wasteful number, since it uses less digits than its factorization.
30697485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 594.
The product of its (nonzero) digits is 181440, while the sum is 42.
The square root of 30697485 is about 5540.5311117257. The cubic root of 30697485 is about 313.1128793600.
The spelling of 30697485 in words is "thirty million, six hundred ninety-seven thousand, four hundred eighty-five".
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