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2289969 = 321123131
BaseRepresentation
bin1000101111000100110001
311022100020200
420233010301
51041234334
6121025413
725315203
oct10570461
94270220
102289969
111324540
12925269
13622416
14438773
15303799
hex22f131

2289969 has 12 divisors (see below), whose sum is σ = 3608592. Its totient is φ = 1387800.

The previous prime is 2289961. The next prime is 2289979. The reversal of 2289969 is 9699822.

It is not a de Polignac number, because 2289969 - 23 = 2289961 is a prime.

It is a super-2 number, since 2×22899692 = 10487916041922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2289961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11467 + ... + 11664.

It is an arithmetic number, because the mean of its divisors is an integer number (300716).

22289969 is an apocalyptic number.

It is an amenable number.

2289969 is a deficient number, since it is larger than the sum of its proper divisors (1318623).

2289969 is a wasteful number, since it uses less digits than its factorization.

2289969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23148 (or 23145 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 2289969 is about 1513.2643523192. The cubic root of 2289969 is about 131.8084342448.

The spelling of 2289969 in words is "two million, two hundred eighty-nine thousand, nine hundred sixty-nine".

Divisors: 1 3 9 11 33 99 23131 69393 208179 254441 763323 2289969