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250400423 = 71331372399
BaseRepresentation
bin11101110110011…
…00111010100111
3122110011122210202
432323030322213
51003100303143
640502541115
76130240250
oct1673147247
9573148722
10250400423
111193875a9
126ba3779b
133cb52a40
1425381b27
1516eb2ab8
hexeeccea7

250400423 has 32 divisors (see below), whose sum is σ = 326860800. Its totient is φ = 186468480.

The previous prime is 250400419. The next prime is 250400441. The reversal of 250400423 is 324004052.

It is a cyclic number.

It is not a de Polignac number, because 250400423 - 22 = 250400419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 250400395 and 250400404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250400453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103178 + ... + 105576.

It is an arithmetic number, because the mean of its divisors is an integer number (10214400).

Almost surely, 2250400423 is an apocalyptic number.

250400423 is a deficient number, since it is larger than the sum of its proper divisors (76460377).

250400423 is a wasteful number, since it uses less digits than its factorization.

250400423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 250400423 is about 15824.0457216225. The cubic root of 250400423 is about 630.2966797835.

Adding to 250400423 its reverse (324004052), we get a palindrome (574404475).

The spelling of 250400423 in words is "two hundred fifty million, four hundred thousand, four hundred twenty-three".

Divisors: 1 7 13 31 37 91 217 259 403 481 1147 2399 2821 3367 8029 14911 16793 31187 74369 88763 104377 218309 520583 621341 966797 1153919 2751653 6767579 8077433 19261571 35771489 250400423