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2269989 = 32311811
BaseRepresentation
bin1000101010001100100101
311021022211200
420222030211
51040114424
6120353113
725203021
oct10521445
94238750
102269989
111310527
12915799
136162b7
14431381
152ec8c9
hex22a325

2269989 has 12 divisors (see below), whose sum is σ = 3293472. Its totient is φ = 1506600.

The previous prime is 2269973. The next prime is 2269991. The reversal of 2269989 is 9899622.

It is not a de Polignac number, because 2269989 - 24 = 2269973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2269909) 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, 2394 + ... + 3204.

It is an arithmetic number, because the mean of its divisors is an integer number (274456).

22269989 is an apocalyptic number.

It is an amenable number.

2269989 is a deficient number, since it is larger than the sum of its proper divisors (1023483).

2269989 is a wasteful number, since it uses less digits than its factorization.

2269989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 1125 counting only the distinct ones).

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

The square root of 2269989 is about 1506.6482668493. The cubic root of 2269989 is about 131.4239706622.

The spelling of 2269989 in words is "two million, two hundred sixty-nine thousand, nine hundred eighty-nine".

Divisors: 1 3 9 311 811 933 2433 2799 7299 252221 756663 2269989