Base | Representation |
---|---|
bin | 100000011111011… |
… | …110000010011111 |
3 | 1101222201222122000 |
4 | 200133132002133 |
5 | 2104022323130 |
6 | 130031453343 |
7 | 16336306230 |
oct | 4037360237 |
9 | 1358658560 |
10 | 545120415 |
11 | 25a785044 |
12 | 132687253 |
13 | 88c22478 |
14 | 5257d087 |
15 | 32ccc260 |
hex | 207de09f |
545120415 has 64 divisors (see below), whose sum is σ = 1114014720. Its totient is φ = 247743360.
The previous prime is 545120413. The next prime is 545120437. The reversal of 545120415 is 514021545.
545120415 is a `hidden beast` number, since 5 + 451 + 204 + 1 + 5 = 666.
It is not a de Polignac number, because 545120415 - 21 = 545120413 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (545120413) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 169452 + ... + 172638.
It is an arithmetic number, because the mean of its divisors is an integer number (17406480).
Almost surely, 2545120415 is an apocalyptic number.
545120415 is an abundant number, since it is smaller than the sum of its proper divisors (568894305).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
545120415 is a wasteful number, since it uses less digits than its factorization.
545120415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3389 (or 3383 counting only the distinct ones).
The product of its (nonzero) digits is 4000, while the sum is 27.
The square root of 545120415 is about 23347.8139233634. The cubic root of 545120415 is about 816.8910708235.
The spelling of 545120415 in words is "five hundred forty-five million, one hundred twenty thousand, four hundred fifteen".
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