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4253665 = 513312111
BaseRepresentation
bin10000001110011111100001
322000002221011
4100032133201
52042104130
6231100521
751104233
oct20163741
98002834
104253665
112445929
121511741
13b5c180
147ca253
1559052a
hex40e7e1

4253665 has 16 divisors (see below), whose sum is σ = 5677056. Its totient is φ = 3038400.

The previous prime is 4253653. The next prime is 4253671. The reversal of 4253665 is 5663524.

It is not a de Polignac number, because 4253665 - 27 = 4253537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

4253665 is a Rhonda number in base 10.

Its product of digits (21600) is a multiple of the sum of its prime divisors (2160).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 960 + ... + 3070.

It is an arithmetic number, because the mean of its divisors is an integer number (354816).

Almost surely, 24253665 is an apocalyptic number.

It is an amenable number.

4253665 is a deficient number, since it is larger than the sum of its proper divisors (1423391).

4253665 is a wasteful number, since it uses less digits than its factorization.

4253665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160.

The product of its digits is 21600, while the sum is 31.

The square root of 4253665 is about 2062.4415143223. The cubic root of 4253665 is about 162.0271381656.

The spelling of 4253665 in words is "four million, two hundred fifty-three thousand, six hundred sixty-five".

Divisors: 1 5 13 31 65 155 403 2015 2111 10555 27443 65441 137215 327205 850733 4253665