Base | Representation |
---|---|
bin | 11100011100101000… |
… | …111010000001000001 |
3 | 2220211202021210200210 |
4 | 130130220322001001 |
5 | 1000024041202023 |
6 | 22010550504333 |
7 | 2130640252662 |
oct | 343450720101 |
9 | 86752253623 |
10 | 30545256513 |
11 | 11a55001352 |
12 | 5b056650a9 |
13 | 2b5a3344a5 |
14 | 169aa21369 |
15 | bdb931593 |
hex | 71ca3a041 |
30545256513 has 16 divisors (see below), whose sum is σ = 42510606336. Its totient is φ = 19472241360.
The previous prime is 30545256491. The next prime is 30545256601. The reversal of 30545256513 is 31565254503.
It is not a de Polignac number, because 30545256513 - 214 = 30545240129 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30545256613) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168706 + ... + 299252.
It is an arithmetic number, because the mean of its divisors is an integer number (2656912896).
Almost surely, 230545256513 is an apocalyptic number.
It is an amenable number.
30545256513 is a deficient number, since it is larger than the sum of its proper divisors (11965349823).
30545256513 is a wasteful number, since it uses less digits than its factorization.
30545256513 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 133964.
The product of its (nonzero) digits is 270000, while the sum is 39.
The spelling of 30545256513 in words is "thirty billion, five hundred forty-five million, two hundred fifty-six thousand, five hundred thirteen".
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