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4069457 = 7581351
BaseRepresentation
bin1111100001100001010001
321122202020122
433201201101
52020210312
6223120025
746406210
oct17414121
97582218
104069457
11232a497
121443015
13ac6382
1477d077
15555b72
hex3e1851

4069457 has 4 divisors (see below), whose sum is σ = 4650816. Its totient is φ = 3488100.

The previous prime is 4069451. The next prime is 4069487. The reversal of 4069457 is 7549604.

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 not a de Polignac number, because 4069457 - 28 = 4069201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4069451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290669 + ... + 290682.

It is an arithmetic number, because the mean of its divisors is an integer number (1162704).

Almost surely, 24069457 is an apocalyptic number.

It is an amenable number.

4069457 is a deficient number, since it is larger than the sum of its proper divisors (581359).

4069457 is an equidigital number, since it uses as much as digits as its factorization.

4069457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581358.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 4069457 is about 2017.2895181406. The cubic root of 4069457 is about 159.6536387738.

The spelling of 4069457 in words is "four million, sixty-nine thousand, four hundred fifty-seven".

Divisors: 1 7 581351 4069457