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2972916 = 223327527
BaseRepresentation
bin1011010101110011110100
312121001002000
423111303310
51230113131
6143415300
734161252
oct13256364
95531060
102972916
111750661
12bb4530
1380122b
145755d2
153dace6
hex2d5cf4

2972916 has 24 divisors (see below), whose sum is σ = 7707840. Its totient is φ = 990936.

The previous prime is 2972903. The next prime is 2972939. The reversal of 2972916 is 6192792.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13656 + ... + 13871.

It is an arithmetic number, because the mean of its divisors is an integer number (321160).

22972916 is an apocalyptic number.

It is an amenable number.

2972916 is an abundant number, since it is smaller than the sum of its proper divisors (4734924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2972916 is a wasteful number, since it uses less digits than its factorization.

2972916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27540 (or 27532 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 2972916 is about 1724.2146038124. The cubic root of 2972916 is about 143.7896233557.

The spelling of 2972916 in words is "two million, nine hundred seventy-two thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 27527 55054 82581 110108 165162 247743 330324 495486 743229 990972 1486458 2972916