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2012141 = 2398419
BaseRepresentation
bin111101011001111101101
310210020010202
413223033231
51003342031
6111043245
723050205
oct7531755
93706122
102012141
11115482a
12810525
13555b21
143a5405
1529b2cb
hex1eb3ed

2012141 has 4 divisors (see below), whose sum is σ = 2020800. Its totient is φ = 2003484.

The previous prime is 2012123. The next prime is 2012147. The reversal of 2012141 is 1412102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1412102 = 2706051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012141 is a prime.

It is a super-2 number, since 2×20121412 = 8097422807762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971 + ... + 4448.

It is an arithmetic number, because the mean of its divisors is an integer number (505200).

22012141 is an apocalyptic number.

It is an amenable number.

2012141 is a deficient number, since it is larger than the sum of its proper divisors (8659).

2012141 is an equidigital number, since it uses as much as digits as its factorization.

2012141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8658.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2012141 is about 1418.4995593937. The cubic root of 2012141 is about 126.2465358655.

Adding to 2012141 its reverse (1412102), we get a palindrome (3424243).

The spelling of 2012141 in words is "two million, twelve thousand, one hundred forty-one".

Divisors: 1 239 8419 2012141