Base | Representation |
---|---|
bin | 1111110111111001100… |
… | …10101111010000010000 |
3 | 1221010210100120021010110 |
4 | 13323330302233100100 |
5 | 32413443200212410 |
6 | 1054320113401320 |
7 | 54255460222623 |
oct | 7737462572020 |
9 | 1833710507113 |
10 | 545407038480 |
11 | 1a0340066587 |
12 | 89853869240 |
13 | 3c57c496095 |
14 | 1c57d969dba |
15 | e2c2175720 |
hex | 7efccaf410 |
545407038480 has 80 divisors (see below), whose sum is σ = 1705724398080. Its totient is φ = 144154773504.
The previous prime is 545407038469. The next prime is 545407038499. The reversal of 545407038480 is 84830704545.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (48).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10028320 + ... + 10082559.
It is an arithmetic number, because the mean of its divisors is an integer number (21321554976).
Almost surely, 2545407038480 is an apocalyptic number.
It is an amenable number.
545407038480 is an abundant number, since it is smaller than the sum of its proper divisors (1160317359600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
545407038480 is a wasteful number, since it uses less digits than its factorization.
545407038480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20111008 (or 20111002 counting only the distinct ones).
The product of its (nonzero) digits is 2150400, while the sum is 48.
The spelling of 545407038480 in words is "five hundred forty-five billion, four hundred seven million, thirty-eight thousand, four hundred eighty".
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