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2136291 = 347109139
BaseRepresentation
bin1000001001100011100011
311000112102220
420021203203
51021330131
6113442123
724105153
oct10114343
94015386
102136291
11122a033
12870343
1359a4a1
143d8763
152c2e96
hex2098e3

2136291 has 16 divisors (see below), whose sum is σ = 2956800. Its totient is φ = 1371168.

The previous prime is 2136289. The next prime is 2136301. The reversal of 2136291 is 1926312.

It is not a de Polignac number, because 2136291 - 21 = 2136289 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136221) 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, 15300 + ... + 15438.

It is an arithmetic number, because the mean of its divisors is an integer number (184800).

22136291 is an apocalyptic number.

2136291 is a deficient number, since it is larger than the sum of its proper divisors (820509).

2136291 is a wasteful number, since it uses less digits than its factorization.

2136291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298.

The product of its digits is 648, while the sum is 24.

The square root of 2136291 is about 1461.6056239629. The cubic root of 2136291 is about 128.7913820539.

The spelling of 2136291 in words is "two million, one hundred thirty-six thousand, two hundred ninety-one".

Divisors: 1 3 47 109 139 141 327 417 5123 6533 15151 15369 19599 45453 712097 2136291