Search a number
-
+
250530472 = 2331316309
BaseRepresentation
bin11101110111011…
…00101010101000
3122110102021012101
432323230222220
51003113433342
640505423144
76131321353
oct1673545250
9573367171
10250530472
11119466285
126ba9aab4
133cb99caa
14253b729a
1516edb3b7
hexeeecaa8

250530472 has 8 divisors (see below), whose sum is σ = 469744650. Its totient is φ = 125265232.

The previous prime is 250530463. The next prime is 250530473. The reversal of 250530472 is 274035052.

It can be written as a sum of positive squares in only one way, i.e., 185340996 + 65189476 = 13614^2 + 8074^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 250530472.

It is not an unprimeable number, because it can be changed into a prime (250530473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15658147 + ... + 15658162.

Almost surely, 2250530472 is an apocalyptic number.

It is an amenable number.

250530472 is a deficient number, since it is larger than the sum of its proper divisors (219214178).

250530472 is a wasteful number, since it uses less digits than its factorization.

250530472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31316315 (or 31316311 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 250530472 is about 15828.1544091533. The cubic root of 250530472 is about 630.4057787290.

The spelling of 250530472 in words is "two hundred fifty million, five hundred thirty thousand, four hundred seventy-two".

Divisors: 1 2 4 8 31316309 62632618 125265236 250530472