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2250831 = 31168207
BaseRepresentation
bin1000100101100001001111
311020100120010
420211201033
51034011311
6120124303
725063122
oct10454117
94210503
102250831
1112a80a0
12906693
1360a66b
144283b9
152e6da6
hex22584f

2250831 has 8 divisors (see below), whose sum is σ = 3273984. Its totient is φ = 1364120.

The previous prime is 2250799. The next prime is 2250869. The reversal of 2250831 is 1380522.

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 2250831 - 25 = 2250799 is a prime.

It is a super-2 number, since 2×22508312 = 10132480381122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2250798 and 2250807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250431) 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, 34071 + ... + 34136.

It is an arithmetic number, because the mean of its divisors is an integer number (409248).

22250831 is an apocalyptic number.

2250831 is a deficient number, since it is larger than the sum of its proper divisors (1023153).

2250831 is a wasteful number, since it uses less digits than its factorization.

2250831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68221.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2250831 is about 1500.2769744284. The cubic root of 2250831 is about 131.0531998441.

It can be divided in two parts, 2250 and 831, that added together give a triangular number (3081 = T78).

The spelling of 2250831 in words is "two million, two hundred fifty thousand, eight hundred thirty-one".

Divisors: 1 3 11 33 68207 204621 750277 2250831