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4665140 = 2251713721
BaseRepresentation
bin10001110010111100110100
322210000100222
4101302330310
52143241030
6243553512
754436664
oct21627464
98700328
104665140
1126a6a97
12168b898
13c7454c
148961a4
156223e5
hex472f34

4665140 has 24 divisors (see below), whose sum is σ = 10373832. Its totient is φ = 1756160.

The previous prime is 4665139. The next prime is 4665149. The reversal of 4665140 is 415664.

It is a happy number.

4665140 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 446224 + 4218916 = 668^2 + 2054^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4665149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6521 + ... + 7200.

It is an arithmetic number, because the mean of its divisors is an integer number (432243).

Almost surely, 24665140 is an apocalyptic number.

It is an amenable number.

4665140 is an abundant number, since it is smaller than the sum of its proper divisors (5708692).

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

4665140 is a wasteful number, since it uses less digits than its factorization.

4665140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13747 (or 13745 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4665140 is about 2159.8935158938. The cubic root of 4665140 is about 167.0917062378.

The spelling of 4665140 in words is "four million, six hundred sixty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 13721 27442 54884 68605 137210 233257 274420 466514 933028 1166285 2332570 4665140