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12142061 = 151191421
BaseRepresentation
bin101110010100…
…010111101101
3211211212202222
4232110113231
511102021221
61112125125
7205130411
oct56242755
924755688
1012142061
116943568
1240967a5
132691869
141880d41
1510ec9ab
hexb945ed

12142061 has 8 divisors (see below), whose sum is σ = 12315648. Its totient is φ = 11970000.

The previous prime is 12142057. The next prime is 12142079. The reversal of 12142061 is 16024121.

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

It is a cyclic number.

It is not a de Polignac number, because 12142061 - 22 = 12142057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142001) 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, 28631 + ... + 29051.

It is an arithmetic number, because the mean of its divisors is an integer number (1539456).

Almost surely, 212142061 is an apocalyptic number.

It is an amenable number.

12142061 is a deficient number, since it is larger than the sum of its proper divisors (173587).

12142061 is a wasteful number, since it uses less digits than its factorization.

12142061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 12142061 is about 3484.5460249507. The cubic root of 12142061 is about 229.8427469515.

Adding to 12142061 its reverse (16024121), we get a palindrome (28166182).

The spelling of 12142061 in words is "twelve million, one hundred forty-two thousand, sixty-one".

Divisors: 1 151 191 421 28841 63571 80411 12142061