Base | Representation |
---|---|
bin | 111010101011… |
… | …1000110111001 |
3 | 2010220001022212 |
4 | 1311113012321 |
5 | 30333443442 |
6 | 3015224505 |
7 | 522334220 |
oct | 165270671 |
9 | 63801285 |
10 | 30765497 |
11 | 16403634 |
12 | a378135 |
13 | 64b2549 |
14 | 412bcb7 |
15 | 2a7aa82 |
hex | 1d571b9 |
30765497 has 8 divisors (see below), whose sum is σ = 35220096. Its totient is φ = 26325792.
The previous prime is 30765451. The next prime is 30765517. The reversal of 30765497 is 79456703.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30765497 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30765407) 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, 1133 + ... + 7925.
It is an arithmetic number, because the mean of its divisors is an integer number (4402512).
Almost surely, 230765497 is an apocalyptic number.
30765497 is the 4529-th pentagonal number.
It is an amenable number.
30765497 is a deficient number, since it is larger than the sum of its proper divisors (4454599).
30765497 is an equidigital number, since it uses as much as digits as its factorization.
30765497 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7447.
The product of its (nonzero) digits is 158760, while the sum is 41.
The square root of 30765497 is about 5546.6653946313. The cubic root of 30765497 is about 313.3439485112.
The spelling of 30765497 in words is "thirty million, seven hundred sixty-five thousand, four hundred ninety-seven".
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