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2136830 = 253161113
BaseRepresentation
bin1000001001101011111110
311000120011212
420021223332
51021334310
6113444422
724106553
oct10115376
94016155
102136830
11122a483
12870712
1359a7c7
143d8a2a
152c3205
hex209afe

2136830 has 32 divisors (see below), whose sum is σ = 4071168. Its totient is φ = 806400.

The previous prime is 2136829. The next prime is 2136833. The reversal of 2136830 is 386312.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2136796 and 2136805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136833) 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, 18854 + ... + 18966.

It is an arithmetic number, because the mean of its divisors is an integer number (127224).

22136830 is an apocalyptic number.

2136830 is a deficient number, since it is larger than the sum of its proper divisors (1934338).

2136830 is a wasteful number, since it uses less digits than its factorization.

2136830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2136830 is about 1461.7899985976. The cubic root of 2136830 is about 128.8022127753.

The spelling of 2136830 in words is "two million, one hundred thirty-six thousand, eight hundred thirty".

Divisors: 1 2 5 10 31 61 62 113 122 155 226 305 310 565 610 1130 1891 3503 3782 6893 7006 9455 13786 17515 18910 34465 35030 68930 213683 427366 1068415 2136830