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372040225 = 5214881609
BaseRepresentation
bin10110001011001…
…110001000100001
3221221001121020121
4112023032020201
51230220241400
6100530040241
712135201244
oct2613161041
9857047217
10372040225
11181009367
12a4719081
135c10215b
14375a725b
15229de21a
hex162ce221

372040225 has 6 divisors (see below), whose sum is σ = 461329910. Its totient is φ = 297632160.

The previous prime is 372040219. The next prime is 372040259. The reversal of 372040225 is 522040273.

It can be written as a sum of positive squares in 3 ways, for example, as 12103441 + 359936784 = 3479^2 + 18972^2 .

It is not a de Polignac number, because 372040225 - 215 = 372007457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 14881609 = 372040225 / (3 + 7 + 2 + 0 + 4 + 0 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 372040225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7440780 + ... + 7440829.

Almost surely, 2372040225 is an apocalyptic number.

It is an amenable number.

372040225 is a deficient number, since it is larger than the sum of its proper divisors (89289685).

372040225 is a wasteful number, since it uses less digits than its factorization.

372040225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14881619 (or 14881614 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 372040225 is about 19288.3442783459. The cubic root of 372040225 is about 719.2225565370. Note that the first 3 decimals are identical.

Adding to 372040225 its reverse (522040273), we get a palindrome (894080498).

The spelling of 372040225 in words is "three hundred seventy-two million, forty thousand, two hundred twenty-five".

Divisors: 1 5 25 14881609 74408045 372040225