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3103142 = 27221653
BaseRepresentation
bin1011110101100110100110
312211122201012
423311212212
51243300032
6150302222
735243030
oct13654646
95748635
103103142
11182a489
121057972
138485a3
145aac50
154146b2
hex2f59a6

3103142 has 8 divisors (see below), whose sum is σ = 5319696. Its totient is φ = 1329912.

The previous prime is 3103109. The next prime is 3103147. The reversal of 3103142 is 2413013.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 221653 = 3103142 / (3 + 1 + 0 + 3 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103147) 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, 110813 + ... + 110840.

It is an arithmetic number, because the mean of its divisors is an integer number (664962).

Almost surely, 23103142 is an apocalyptic number.

3103142 is a deficient number, since it is larger than the sum of its proper divisors (2216554).

3103142 is a wasteful number, since it uses less digits than its factorization.

3103142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221662.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3103142 is about 1761.5737282328. The cubic root of 3103142 is about 145.8592187701.

Adding to 3103142 its reverse (2413013), we get a palindrome (5516155).

The spelling of 3103142 in words is "three million, one hundred three thousand, one hundred forty-two".

Divisors: 1 2 7 14 221653 443306 1551571 3103142