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142022143031 = 8312831333679
BaseRepresentation
bin1000010001000100101…
…1011110110000110111
3111120120202201101111112
42010101023132300313
54311330132034111
6145124415225235
713155304204016
oct2042113366067
9446522641445
10142022143031
115525a88512a
1223636b1821b
13105147c0032
146c3400ca7d
153a63509e8b
hex21112dec37

142022143031 has 8 divisors (see below), whose sum is σ = 143845390080. Its totient is φ = 140201566072.

The previous prime is 142022143013. The next prime is 142022143051. The reversal of 142022143031 is 130341220241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142022143031 is a prime.

It is a super-2 number, since 2×1420221430312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142022142988 and 142022143006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142022143051) 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, 560351 + ... + 773328.

It is an arithmetic number, because the mean of its divisors is an integer number (17980673760).

Almost surely, 2142022143031 is an apocalyptic number.

142022143031 is a deficient number, since it is larger than the sum of its proper divisors (1823247049).

142022143031 is a wasteful number, since it uses less digits than its factorization.

142022143031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335045.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 142022143031 its reverse (130341220241), we get a palindrome (272363363272).

The spelling of 142022143031 in words is "one hundred forty-two billion, twenty-two million, one hundred forty-three thousand, thirty-one".

Divisors: 1 83 1283 106489 1333679 110695357 1711110157 142022143031