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4420913 = 7631559
BaseRepresentation
bin10000110111010100110001
322022121100112
4100313110301
52112432123
6234431105
752401650
oct20672461
98277315
104420913
11254a552
121592495
13bba333
14831197
155c4d78
hex437531

4420913 has 4 divisors (see below), whose sum is σ = 5052480. Its totient is φ = 3789348.

The previous prime is 4420903. The next prime is 4420987. The reversal of 4420913 is 3190244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4420913 - 26 = 4420849 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4420903) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 315773 + ... + 315786.

It is an arithmetic number, because the mean of its divisors is an integer number (1263120).

Almost surely, 24420913 is an apocalyptic number.

It is an amenable number.

4420913 is a deficient number, since it is larger than the sum of its proper divisors (631567).

4420913 is an equidigital number, since it uses as much as digits as its factorization.

4420913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631566.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4420913 is about 2102.5967278582. The cubic root of 4420913 is about 164.1234570101.

The spelling of 4420913 in words is "four million, four hundred twenty thousand, nine hundred thirteen".

Divisors: 1 7 631559 4420913