[go: up one dir, main page]

Search a number
-
+
4057249 = 72312671
BaseRepresentation
bin1111011110100010100001
321122010111111
433132202201
52014312444
6222543321
746325500
oct17364241
97563444
104057249
1123212a9
121437b41
13ac0951
14778837
15552234
hex3de8a1

4057249 has 12 divisors (see below), whose sum is σ = 4873728. Its totient is φ = 3364200.

The previous prime is 4057247. The next prime is 4057297. The reversal of 4057249 is 9427504.

It is not a de Polignac number, because 4057249 - 21 = 4057247 is a prime.

It is a super-2 number, since 2×40572492 = 32922538896002, which contains 22 as substring.

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

It is a d-powerful number, because it can be written as 4 + 0 + 59 + 73 + 221 + 43 + 94 .

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 4057249.

It is not an unprimeable number, because it can be changed into a prime (4057247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184 + ... + 2854.

It is an arithmetic number, because the mean of its divisors is an integer number (406144).

Almost surely, 24057249 is an apocalyptic number.

4057249 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4057249 is a deficient number, since it is larger than the sum of its proper divisors (816479).

4057249 is a wasteful number, since it uses less digits than its factorization.

4057249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 4057249 is about 2014.2614030954. The cubic root of 4057249 is about 159.4938300762.

The spelling of 4057249 in words is "four million, fifty-seven thousand, two hundred forty-nine".

Divisors: 1 7 31 49 217 1519 2671 18697 82801 130879 579607 4057249