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2192961 = 31979487
BaseRepresentation
bin1000010111011001000001
311010102011210
420113121001
51030133321
6115000333
724432321
oct10273101
94112153
102192961
111268671
128990a9
135ba214
14411281
152d4b76
hex217641

2192961 has 16 divisors (see below), whose sum is σ = 3123200. Its totient is φ = 1364688.

The previous prime is 2192947. The next prime is 2192963. The reversal of 2192961 is 1692912.

It is a happy number.

It is not a de Polignac number, because 2192961 - 213 = 2184769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192963) 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, 4260 + ... + 4746.

It is an arithmetic number, because the mean of its divisors is an integer number (195200).

22192961 is an apocalyptic number.

It is an amenable number.

2192961 is a deficient number, since it is larger than the sum of its proper divisors (930239).

2192961 is a wasteful number, since it uses less digits than its factorization.

2192961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its digits is 1944, while the sum is 30.

The square root of 2192961 is about 1480.8649499532. The cubic root of 2192961 is about 129.9202864368.

The spelling of 2192961 in words is "two million, one hundred ninety-two thousand, nine hundred sixty-one".

Divisors: 1 3 19 57 79 237 487 1461 1501 4503 9253 27759 38473 115419 730987 2192961