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2135142 = 232118619
BaseRepresentation
bin1000001001010001100110
311000110212100
420021101212
51021311032
6113432530
724101622
oct10112146
94013770
102135142
111229189
1286b746
13599ac9
143d8182
152c297c
hex209466

2135142 has 12 divisors (see below), whose sum is σ = 4626180. Its totient is φ = 711708.

The previous prime is 2135141. The next prime is 2135153. The reversal of 2135142 is 2415312.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 118619 = 2135142 / (2 + 1 + 3 + 5 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59292 + ... + 59327.

It is an arithmetic number, because the mean of its divisors is an integer number (385515).

22135142 is an apocalyptic number.

2135142 is an abundant number, since it is smaller than the sum of its proper divisors (2491038).

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

2135142 is a wasteful number, since it uses less digits than its factorization.

2135142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118627 (or 118624 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2135142 is about 1461.2125102120. The cubic root of 2135142 is about 128.7682878475.

The spelling of 2135142 in words is "two million, one hundred thirty-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 118619 237238 355857 711714 1067571 2135142