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2142039 = 3739781
BaseRepresentation
bin1000001010111101010111
311000211022210
420022331113
51022021124
6113524503
724131004
oct10127527
94024283
102142039
111233389
12873733
1359cca3
143da8ab
152c4a29
hex20af57

2142039 has 8 divisors (see below), whose sum is σ = 2895472. Its totient is φ = 1408320.

The previous prime is 2142037. The next prime is 2142043. The reversal of 2142039 is 9302412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2142039 - 21 = 2142037 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4672 + ... + 5109.

It is an arithmetic number, because the mean of its divisors is an integer number (361934).

22142039 is an apocalyptic number.

2142039 is a deficient number, since it is larger than the sum of its proper divisors (753433).

2142039 is an equidigital number, since it uses as much as digits as its factorization.

2142039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9857.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2142039 is about 1463.5706337584. The cubic root of 2142039 is about 128.9067892246.

The spelling of 2142039 in words is "two million, one hundred forty-two thousand, thirty-nine".

Divisors: 1 3 73 219 9781 29343 714013 2142039