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6142161 = 32047387
BaseRepresentation
bin10111011011100011010001
3102120001110110
4113123203101
53033022121
6335351533
7103131114
oct27334321
912501413
106142161
113515773
1220825a9
13137091c
14b5c57b
15814d76
hex5db8d1

6142161 has 4 divisors (see below), whose sum is σ = 8189552. Its totient is φ = 4094772.

The previous prime is 6142153. The next prime is 6142177. The reversal of 6142161 is 1612416.

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.

It is not a de Polignac number, because 6142161 - 23 = 6142153 is a prime.

It is a super-2 number, since 2×61421612 = 75452283499842, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6142141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023691 + ... + 1023696.

It is an arithmetic number, because the mean of its divisors is an integer number (2047388).

Almost surely, 26142161 is an apocalyptic number.

It is an amenable number.

6142161 is a deficient number, since it is larger than the sum of its proper divisors (2047391).

6142161 is a wasteful number, since it uses less digits than its factorization.

6142161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047390.

The product of its digits is 288, while the sum is 21.

The square root of 6142161 is about 2478.3383546239. The cubic root of 6142161 is about 183.1360032915.

Adding to 6142161 its reverse (1612416), we get a palindrome (7754577).

It can be divided in two parts, 614 and 2161, that added together give a triangular number (2775 = T74).

The spelling of 6142161 in words is "six million, one hundred forty-two thousand, one hundred sixty-one".

Divisors: 1 3 2047387 6142161