Base | Representation |
---|---|
bin | 111010101010… |
… | …1111001110101 |
3 | 2010212210120012 |
4 | 1311111321311 |
5 | 30333314230 |
6 | 3015150005 |
7 | 522313643 |
oct | 165257165 |
9 | 63783505 |
10 | 30760565 |
11 | 163aa960 |
12 | a375305 |
13 | 64b0224 |
14 | 412a193 |
15 | 2a79395 |
hex | 1d55e75 |
30760565 has 32 divisors (see below), whose sum is σ = 43110144. Its totient is φ = 20823040.
The previous prime is 30760559. The next prime is 30760567. The reversal of 30760565 is 56506703.
It is not a de Polignac number, because 30760565 - 24 = 30760549 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30760567) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156047 + ... + 156243.
It is an arithmetic number, because the mean of its divisors is an integer number (1347192).
Almost surely, 230760565 is an apocalyptic number.
It is an amenable number.
30760565 is a deficient number, since it is larger than the sum of its proper divisors (12349579).
30760565 is a wasteful number, since it uses less digits than its factorization.
30760565 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 397.
The product of its (nonzero) digits is 18900, while the sum is 32.
The square root of 30760565 is about 5546.2207853637. The cubic root of 30760565 is about 313.3272036173.
The spelling of 30760565 in words is "thirty million, seven hundred sixty thousand, five hundred sixty-five".
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