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2258730 = 232525097
BaseRepresentation
bin1000100111011100101010
311020202101200
420213130222
51034234410
6120225030
725125135
oct10473452
94222350
102258730
111303021
1290b176
13611136
1442b21c
152e93c0
hex22772a

2258730 has 24 divisors (see below), whose sum is σ = 5872932. Its totient is φ = 602304.

The previous prime is 2258717. The next prime is 2258741. The reversal of 2258730 is 378522.

2258730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2187441 + 71289 = 1479^2 + 267^2 .

It is a super-2 number, since 2×22587302 = 10203722425800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2258694 and 2258703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12459 + ... + 12638.

22258730 is an apocalyptic number.

2258730 is an abundant number, since it is smaller than the sum of its proper divisors (3614202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2258730 is a wasteful number, since it uses less digits than its factorization.

2258730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25110 (or 25107 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2258730 is about 1502.9071827628. The cubic root of 2258730 is about 131.2063256047.

The spelling of 2258730 in words is "two million, two hundred fifty-eight thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 25097 50194 75291 125485 150582 225873 250970 376455 451746 752910 1129365 2258730