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4257244 = 221064311
BaseRepresentation
bin10000001111010111011100
322000021211201
4100033113130
52042212434
6231125244
751120535
oct20172734
98007751
104257244
112448592
121513824
13b609a4
147cb68c
15591614
hex40f5dc

4257244 has 6 divisors (see below), whose sum is σ = 7450184. Its totient is φ = 2128620.

The previous prime is 4257241. The next prime is 4257269. The reversal of 4257244 is 4427524.

It is a happy number.

It is an Ulam number.

It is a d-powerful number, because it can be written as 45 + 213 + 55 + 75 + 215 + 45 + 411 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4257241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532152 + ... + 532159.

Almost surely, 24257244 is an apocalyptic number.

It is an amenable number.

4257244 is a deficient number, since it is larger than the sum of its proper divisors (3192940).

4257244 is a wasteful number, since it uses less digits than its factorization.

4257244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064315 (or 1064313 counting only the distinct ones).

The product of its digits is 8960, while the sum is 28.

The square root of 4257244 is about 2063.3089928559. The cubic root of 4257244 is about 162.0725682095.

The spelling of 4257244 in words is "four million, two hundred fifty-seven thousand, two hundred forty-four".

Divisors: 1 2 4 1064311 2128622 4257244