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2281797 = 33712073
BaseRepresentation
bin1000101101000101000101
311021221001000
420231011011
51041004142
6120523513
725252320
oct10550505
94257030
102281797
111319391
12920599
1361b79b
144357b7
1530114c
hex22d145

2281797 has 16 divisors (see below), whose sum is σ = 3863680. Its totient is φ = 1303776.

The previous prime is 2281793. The next prime is 2281813. The reversal of 2281797 is 7971822.

It is not a de Polignac number, because 2281797 - 22 = 2281793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5848 + ... + 6225.

It is an arithmetic number, because the mean of its divisors is an integer number (241480).

22281797 is an apocalyptic number.

2281797 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2281797 is a deficient number, since it is larger than the sum of its proper divisors (1581883).

2281797 is a wasteful number, since it uses less digits than its factorization.

2281797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12089 (or 12083 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2281797 is about 1510.5618160142. The cubic root of 2281797 is about 131.6514565207.

It can be divided in two parts, 228 and 1797, that added together give a square (2025 = 452).

The spelling of 2281797 in words is "two million, two hundred eighty-one thousand, seven hundred ninety-seven".

Divisors: 1 3 7 9 21 27 63 189 12073 36219 84511 108657 253533 325971 760599 2281797