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2991116 = 221743987
BaseRepresentation
bin1011011010010000001100
312121222001002
423122100030
51231203431
6144035432
734265312
oct13322014
95558032
102991116
1117632a7
121002b78
138095bb
1457c0b2
153e13cb
hex2da40c

2991116 has 12 divisors (see below), whose sum is σ = 5542488. Its totient is φ = 1407552.

The previous prime is 2991103. The next prime is 2991139. The reversal of 2991116 is 6111992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21926 + ... + 22061.

It is an arithmetic number, because the mean of its divisors is an integer number (461874).

22991116 is an apocalyptic number.

It is an amenable number.

2991116 is a deficient number, since it is larger than the sum of its proper divisors (2551372).

2991116 is a wasteful number, since it uses less digits than its factorization.

2991116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44008 (or 44006 counting only the distinct ones).

The product of its digits is 972, while the sum is 29.

The square root of 2991116 is about 1729.4843162053. The cubic root of 2991116 is about 144.0824502104.

The spelling of 2991116 in words is "two million, nine hundred ninety-one thousand, one hundred sixteen".

Divisors: 1 2 4 17 34 68 43987 87974 175948 747779 1495558 2991116