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2136874 = 21068437
BaseRepresentation
bin1000001001101100101010
311000120020111
420021230222
51021334444
6113444534
724106645
oct10115452
94016214
102136874
11122a513
1287074a
1359a82c
143d8a5c
152c3234
hex209b2a

2136874 has 4 divisors (see below), whose sum is σ = 3205314. Its totient is φ = 1068436.

The previous prime is 2136863. The next prime is 2136877. The reversal of 2136874 is 4786312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1221025 + 915849 = 1105^2 + 957^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2136877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534217 + ... + 534220.

22136874 is an apocalyptic number.

2136874 is a deficient number, since it is larger than the sum of its proper divisors (1068440).

2136874 is a wasteful number, since it uses less digits than its factorization.

2136874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068439.

The product of its digits is 8064, while the sum is 31.

The square root of 2136874 is about 1461.8050485615. The cubic root of 2136874 is about 128.8030968354.

The spelling of 2136874 in words is "two million, one hundred thirty-six thousand, eight hundred seventy-four".

Divisors: 1 2 1068437 2136874