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2256290 = 25225629
BaseRepresentation
bin1000100110110110100010
311020122001022
420212312202
51034200130
6120205442
725115051
oct10466642
94218038
102256290
111301203
12909882
1360ccaa
1442a398
152e87e5
hex226da2

2256290 has 8 divisors (see below), whose sum is σ = 4061340. Its totient is φ = 902512.

The previous prime is 2256281. The next prime is 2256299. The reversal of 2256290 is 926522.

It is an interprime number because it is at equal distance from previous prime (2256281) and next prime (2256299).

It can be written as a sum of positive squares in 2 ways, for example, as 2036329 + 219961 = 1427^2 + 469^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2256299) 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, 112805 + ... + 112824.

22256290 is an apocalyptic number.

2256290 is a deficient number, since it is larger than the sum of its proper divisors (1805050).

2256290 is a wasteful number, since it uses less digits than its factorization.

2256290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225636.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2256290 is about 1502.0952033743. The cubic root of 2256290 is about 131.1590632371.

The spelling of 2256290 in words is "two million, two hundred fifty-six thousand, two hundred ninety".

Divisors: 1 2 5 10 225629 451258 1128145 2256290