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4685540 = 2251713781
BaseRepresentation
bin10001110111111011100100
322211001100112
4101313323210
52144414130
6244232152
754553316
oct21677344
98731315
104685540
112710352
12169b658
13c80912
1489d7b6
15628495
hex477ee4

4685540 has 24 divisors (see below), whose sum is σ = 10419192. Its totient is φ = 1763840.

The previous prime is 4685539. The next prime is 4685561. The reversal of 4685540 is 455864.

It can be written as a sum of positive squares in 4 ways, for example, as 1098304 + 3587236 = 1048^2 + 1894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4685497 and 4685506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6551 + ... + 7230.

It is an arithmetic number, because the mean of its divisors is an integer number (434133).

Almost surely, 24685540 is an apocalyptic number.

It is an amenable number.

4685540 is an abundant number, since it is smaller than the sum of its proper divisors (5733652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4685540 is a wasteful number, since it uses less digits than its factorization.

4685540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13807 (or 13805 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 4685540 is about 2164.6108195239. The cubic root of 4685540 is about 167.3349082494.

It can be divided in two parts, 4685 and 540, that added together give a palindrome (5225).

The spelling of 4685540 in words is "four million, six hundred eighty-five thousand, five hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 13781 27562 55124 68905 137810 234277 275620 468554 937108 1171385 2342770 4685540