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3131050142 = 211142320461
BaseRepresentation
bin1011101010100000…
…0000100010011110
322002012121211100002
42322220000202132
522403022101032
61234405134302
7140406326033
oct27250004236
98065554302
103131050142
11136743a350
127346ba392
133ab8a9cbc
14219b9b38a
15134d2d862
hexbaa0089e

3131050142 has 8 divisors (see below), whose sum is σ = 5123536632. Its totient is φ = 1423204600.

The previous prime is 3131050141. The next prime is 3131050159. The reversal of 3131050142 is 2410501313.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131050141) 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, 71160209 + ... + 71160252.

It is an arithmetic number, because the mean of its divisors is an integer number (640442079).

Almost surely, 23131050142 is an apocalyptic number.

3131050142 is a deficient number, since it is larger than the sum of its proper divisors (1992486490).

3131050142 is a wasteful number, since it uses less digits than its factorization.

3131050142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142320474.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 3131050142 is about 55955.7873861140. The cubic root of 3131050142 is about 1462.9517660723.

Adding to 3131050142 its reverse (2410501313), we get a palindrome (5541551455).

The spelling of 3131050142 in words is "three billion, one hundred thirty-one million, fifty thousand, one hundred forty-two".

Divisors: 1 2 11 22 142320461 284640922 1565525071 3131050142