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2137899 = 31937507
BaseRepresentation
bin1000001001111100101011
311000121122110
420021330223
51021403044
6113453403
724112641
oct10117453
94017573
102137899
111230265
12871263
1359b13a
143d9191
152c36b9
hex209f2b

2137899 has 8 divisors (see below), whose sum is σ = 3000640. Its totient is φ = 1350216.

The previous prime is 2137879. The next prime is 2137907. The reversal of 2137899 is 9987312.

2137899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2137899 - 27 = 2137771 is a prime.

It is a super-3 number, since 3×21378993 = 29314521333288551097, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18697 + ... + 18810.

It is an arithmetic number, because the mean of its divisors is an integer number (375080).

22137899 is an apocalyptic number.

2137899 is a deficient number, since it is larger than the sum of its proper divisors (862741).

2137899 is a wasteful number, since it uses less digits than its factorization.

2137899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37529.

The product of its digits is 27216, while the sum is 39.

The square root of 2137899 is about 1462.1556004749. The cubic root of 2137899 is about 128.8236879840.

The spelling of 2137899 in words is "two million, one hundred thirty-seven thousand, eight hundred ninety-nine".

Divisors: 1 3 19 57 37507 112521 712633 2137899