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3131130143 = 37293288823
BaseRepresentation
bin1011101010100001…
…0100000100011111
322002012202220002002
42322220110010133
522403032131033
61234410552515
7140410111211
oct27250240437
98065686062
103131130143
111367494469
1273473873b
133ab90753b
14219bbc5b1
15134d473e8
hexbaa1411f

3131130143 has 8 divisors (see below), whose sum is σ = 3226741728. Its totient is φ = 3036096864.

The previous prime is 3131130133. The next prime is 3131130151. The reversal of 3131130143 is 3410311313.

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

It is a de Polignac number, because none of the positive numbers 2k-3131130143 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 (3131130133) 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, 133571 + ... + 155252.

It is an arithmetic number, because the mean of its divisors is an integer number (403342716).

Almost surely, 23131130143 is an apocalyptic number.

3131130143 is a deficient number, since it is larger than the sum of its proper divisors (95611585).

3131130143 is a wasteful number, since it uses less digits than its factorization.

3131130143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289153.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3131130143 is about 55956.5022405797. The cubic root of 3131130143 is about 1462.9642258544.

Adding to 3131130143 its reverse (3410311313), we get a palindrome (6541441456).

The spelling of 3131130143 in words is "three billion, one hundred thirty-one million, one hundred thirty thousand, one hundred forty-three".

Divisors: 1 37 293 10841 288823 10686451 84625139 3131130143