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2131230 = 235193739
BaseRepresentation
bin1000001000010100011110
311000021111110
420020110132
51021144410
6113402450
724054333
oct10102436
94007443
102131230
111226252
12869426
135980aa
143d698a
152c1720
hex20851e

2131230 has 32 divisors (see below), whose sum is σ = 5385600. Its totient is φ = 538272.

The previous prime is 2131223. The next prime is 2131231. The reversal of 2131230 is 321312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131231) 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, 1300 + ... + 2439.

It is an arithmetic number, because the mean of its divisors is an integer number (168300).

22131230 is an apocalyptic number.

2131230 is an abundant number, since it is smaller than the sum of its proper divisors (3254370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131230 is a wasteful number, since it uses less digits than its factorization.

2131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2131230 is about 1459.8732821721. The cubic root of 2131230 is about 128.6895968273.

Adding to 2131230 its reverse (321312), we get a palindrome (2452542).

The spelling of 2131230 in words is "two million, one hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 3739 7478 11217 18695 22434 37390 56085 71041 112170 142082 213123 355205 426246 710410 1065615 2131230