Base | Representation |
---|---|
bin | 1110011111011… |
… | …1000011110001 |
3 | 11020100222120012 |
4 | 3213313003301 |
5 | 111024441120 |
6 | 10010424305 |
7 | 1335425312 |
oct | 347670361 |
9 | 136328505 |
10 | 60780785 |
11 | 3134455a |
12 | 18432095 |
13 | c791480 |
14 | 8102609 |
15 | 55091c5 |
hex | 39f70f1 |
60780785 has 12 divisors (see below), whose sum is σ = 78628788. Its totient is φ = 44837856.
The previous prime is 60780767. The next prime is 60780787. The reversal of 60780785 is 58708706.
It can be written as a sum of positive squares in 2 ways, for example, as 14961424 + 45819361 = 3868^2 + 6769^2 .
It is not a de Polignac number, because 60780785 - 212 = 60776689 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (60780787) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62372 + ... + 63338.
It is an arithmetic number, because the mean of its divisors is an integer number (6552399).
Almost surely, 260780785 is an apocalyptic number.
60780785 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
It is an amenable number.
60780785 is a deficient number, since it is larger than the sum of its proper divisors (17848003).
60780785 is an frugal number, since it uses more digits than its factorization.
60780785 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1952 (or 985 counting only the distinct ones).
The product of its (nonzero) digits is 94080, while the sum is 41.
The square root of 60780785 is about 7796.2032426047. The cubic root of 60780785 is about 393.1776008182.
The spelling of 60780785 in words is "sixty million, seven hundred eighty thousand, seven hundred eighty-five".
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