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3131144142 = 237653114167
BaseRepresentation
bin1011101010100001…
…0111011111001110
322002012210121021120
42322220113133032
522403033103032
61234411141410
7140410200060
oct27250273716
98065717246
103131144142
1113674a3a35
12734744866
133ab910a19
14219bc3730
15134d4b62c
hexbaa177ce

3131144142 has 32 divisors (see below), whose sum is σ = 7167923712. Its totient is φ = 893234784.

The previous prime is 3131144141. The next prime is 3131144143. The reversal of 3131144142 is 2414411313.

It is an interprime number because it is at equal distance from previous prime (3131144141) and next prime (3131144143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131144141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29658 + ... + 84509.

It is an arithmetic number, because the mean of its divisors is an integer number (223997616).

Almost surely, 23131144142 is an apocalyptic number.

3131144142 is an abundant number, since it is smaller than the sum of its proper divisors (4036779570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131144142 is a wasteful number, since it uses less digits than its factorization.

3131144142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114832.

The product of its digits is 1152, while the sum is 24.

The square root of 3131144142 is about 55956.6273286731. The cubic root of 3131144142 is about 1462.9664061114.

Adding to 3131144142 its reverse (2414411313), we get a palindrome (5545555455).

The spelling of 3131144142 in words is "three billion, one hundred thirty-one million, one hundred forty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 653 1306 1959 3918 4571 9142 13713 27426 114167 228334 342501 685002 799169 1598338 2397507 4795014 74551051 149102102 223653153 447306306 521857357 1043714714 1565572071 3131144142