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2289830 = 25228983
BaseRepresentation
bin1000101111000010100110
311022100001112
420233002212
51041233310
6121025022
725314614
oct10570246
94270045
102289830
111324424
12925172
1362233a
144386b4
15303705
hex22f0a6

2289830 has 8 divisors (see below), whose sum is σ = 4121712. Its totient is φ = 915928.

The previous prime is 2289829. The next prime is 2289839. The reversal of 2289830 is 389822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114482 + ... + 114501.

It is an arithmetic number, because the mean of its divisors is an integer number (515214).

22289830 is an apocalyptic number.

2289830 is a deficient number, since it is larger than the sum of its proper divisors (1831882).

2289830 is a wasteful number, since it uses less digits than its factorization.

2289830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228990.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 2289830 is about 1513.2184244186. The cubic root of 2289830 is about 131.8057672883.

The spelling of 2289830 in words is "two million, two hundred eighty-nine thousand, eight hundred thirty".

Divisors: 1 2 5 10 228983 457966 1144915 2289830