Search a number
-
+
250690369 = 2416831523
BaseRepresentation
bin11101111000100…
…11101101000001
3122110201101112111
432330103231001
51003134042434
640513055321
76132555466
oct1674235501
9573641474
10250690369
11119565426
126bb57541
133cc249c7
142541966d
151701d964
hexef13b41

250690369 has 8 divisors (see below), whose sum is σ = 252264672. Its totient is φ = 249120960.

The previous prime is 250690357. The next prime is 250690399. The reversal of 250690369 is 963096052.

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

It is a cyclic number.

It is not a de Polignac number, because 250690369 - 25 = 250690337 is a prime.

It is a super-2 number, since 2×2506903692 = 125691322218712322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250690309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163842 + ... + 165364.

It is an arithmetic number, because the mean of its divisors is an integer number (31533084).

Almost surely, 2250690369 is an apocalyptic number.

It is an amenable number.

250690369 is a deficient number, since it is larger than the sum of its proper divisors (1574303).

250690369 is a wasteful number, since it uses less digits than its factorization.

250690369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 250690369 is about 15833.2046345647. The cubic root of 250690369 is about 630.5398656193.

The spelling of 250690369 in words is "two hundred fifty million, six hundred ninety thousand, three hundred sixty-nine".

Divisors: 1 241 683 1523 164603 367043 1040209 250690369