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4250978 = 213211609
BaseRepresentation
bin10000001101110101100010
321222222020122
4100031311202
52042012403
6231040242
751063344
oct20156542
97888218
104250978
112443906
121510082
13b5ab94
147c9294
1558e838
hex40dd62

4250978 has 8 divisors (see below), whose sum is σ = 6385260. Its totient is φ = 2122560.

The previous prime is 4250977. The next prime is 4250993. The reversal of 4250978 is 8790524.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3003289 + 1247689 = 1733^2 + 1117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4250977) 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, 1838 + ... + 3446.

Almost surely, 24250978 is an apocalyptic number.

4250978 is a deficient number, since it is larger than the sum of its proper divisors (2134282).

4250978 is a wasteful number, since it uses less digits than its factorization.

4250978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 4250978 is about 2061.7899990057. The cubic root of 4250978 is about 161.9930139750.

The spelling of 4250978 in words is "four million, two hundred fifty thousand, nine hundred seventy-eight".

Divisors: 1 2 1321 1609 2642 3218 2125489 4250978