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2138732 = 222711973
BaseRepresentation
bin1000001010001001101100
311000122210022
420022021230
51021414412
6113501312
724115241
oct10121154
94018708
102138732
111230952
12871838
1359b62b
143d95c8
152c3a72
hex20a26c

2138732 has 12 divisors (see below), whose sum is σ = 3758496. Its totient is φ = 1064880.

The previous prime is 2138713. The next prime is 2138737. The reversal of 2138732 is 2378312.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2138737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (313208).

22138732 is an apocalyptic number.

It is an amenable number.

2138732 is a deficient number, since it is larger than the sum of its proper divisors (1619764).

2138732 is a wasteful number, since it uses less digits than its factorization.

2138732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248 (or 2246 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 2138732 is about 1462.4404261371. The cubic root of 2138732 is about 128.8404172118.

The spelling of 2138732 in words is "two million, one hundred thirty-eight thousand, seven hundred thirty-two".

Divisors: 1 2 4 271 542 1084 1973 3946 7892 534683 1069366 2138732