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2270997 = 3423253
BaseRepresentation
bin1000101010011100010101
311021101020000
420222130111
51040132442
6120401513
725205661
oct10523425
94241200
102270997
111311263
12916299
136168b1
144318a1
152ecd4c
hex22a715

2270997 has 30 divisors (see below), whose sum is σ = 3613302. Its totient is φ = 1420848.

The previous prime is 2270987. The next prime is 2271001. The reversal of 2270997 is 7990722.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 171396 = 1449^2 + 414^2 .

It is not a de Polignac number, because 2270997 - 24 = 2270981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2270977) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 42823 + ... + 42875.

22270997 is an apocalyptic number.

2270997 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2270997 is a deficient number, since it is larger than the sum of its proper divisors (1342305).

2270997 is an equidigital number, since it uses as much as digits as its factorization.

2270997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 2270997 is about 1506.9827470811. The cubic root of 2270997 is about 131.4434209412.

The spelling of 2270997 in words is "two million, two hundred seventy thousand, nine hundred ninety-seven".

Divisors: 1 3 9 23 27 53 69 81 159 207 477 529 621 1219 1431 1587 1863 3657 4293 4761 10971 14283 28037 32913 42849 84111 98739 252333 756999 2270997