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3123042143 = 132310444957
BaseRepresentation
bin1011101000100101…
…1101011101011111
322001122112222102112
42322021131131133
522343444322033
61233521344235
7140251264064
oct27211353537
98048488375
103123042143
11136296a871
12731a9807b
133aa035040
14218ab4c6b
1513429ac48
hexba25d75f

3123042143 has 8 divisors (see below), whose sum is σ = 3509505888. Its totient is φ = 2757468384.

The previous prime is 3123042113. The next prime is 3123042151. The reversal of 3123042143 is 3412403213.

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 3123042143 - 218 = 3122779999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123042113) 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, 5222180 + ... + 5222777.

It is an arithmetic number, because the mean of its divisors is an integer number (438688236).

Almost surely, 23123042143 is an apocalyptic number.

3123042143 is a deficient number, since it is larger than the sum of its proper divisors (386463745).

3123042143 is a wasteful number, since it uses less digits than its factorization.

3123042143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10444993.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3123042143 is about 55884.1850884488. The cubic root of 3123042143 is about 1461.7034821960.

Adding to 3123042143 its reverse (3412403213), we get a palindrome (6535445356).

The spelling of 3123042143 in words is "three billion, one hundred twenty-three million, forty-two thousand, one hundred forty-three".

Divisors: 1 13 23 299 10444957 135784441 240234011 3123042143