Search a number
-
+
250664349 = 3132494407
BaseRepresentation
bin11101111000011…
…01010110011101
3122110200001211210
432330031112131
51003132224344
640512335033
76132416565
oct1674152635
9573601753
10250664349
11119547921
126bb44479
133cc15c00
142540dda5
1517015db9
hexef0d59d

250664349 has 12 divisors (see below), whose sum is σ = 361906656. Its totient is φ = 154254672.

The previous prime is 250664333. The next prime is 250664369. The reversal of 250664349 is 943466052.

It is not a de Polignac number, because 250664349 - 24 = 250664333 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250664369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246697 + ... + 247710.

It is an arithmetic number, because the mean of its divisors is an integer number (30158888).

Almost surely, 2250664349 is an apocalyptic number.

It is an amenable number.

250664349 is a deficient number, since it is larger than the sum of its proper divisors (111242307).

250664349 is a wasteful number, since it uses less digits than its factorization.

250664349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494436 (or 494423 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 250664349 is about 15832.3829223525. The cubic root of 250664349 is about 630.5180495772.

The spelling of 250664349 in words is "two hundred fifty million, six hundred sixty-four thousand, three hundred forty-nine".

Divisors: 1 3 13 39 169 507 494407 1483221 6427291 19281873 83554783 250664349