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457069 = 2915761
BaseRepresentation
bin1101111100101101101
3212012222111
41233211231
5104111234
613444021
73612364
oct1574555
9765874
10457069
11292448
121a0611
13130072
14bc7db
1590664
hex6f96d

457069 has 4 divisors (see below), whose sum is σ = 472860. Its totient is φ = 441280.

The previous prime is 457057. The next prime is 457087. The reversal of 457069 is 960754.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 191844 = 515^2 + 438^2 .

It is a cyclic number.

It is not a de Polignac number, because 457069 - 29 = 456557 is a prime.

It is a super-2 number, since 2×4570692 = 417824141522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 457069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7852 + ... + 7909.

It is an arithmetic number, because the mean of its divisors is an integer number (118215).

2457069 is an apocalyptic number.

It is an amenable number.

457069 is a deficient number, since it is larger than the sum of its proper divisors (15791).

457069 is a wasteful number, since it uses less digits than its factorization.

457069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15790.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 457069 is about 676.0687834829. The cubic root of 457069 is about 77.0301225822.

The spelling of 457069 in words is "four hundred fifty-seven thousand, sixty-nine".

Divisors: 1 29 15761 457069