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142215383141 = 13172922189949
BaseRepresentation
bin1000010001110010110…
…0101000100001100101
3111121002020100000002122
42010130230220201211
54312224114230031
6145155521115325
713163141545166
oct2043454504145
9447066300078
10142215383141
11553499702a7
122368b788b45
131054584b4b0
146c5195176d
153a7547b47b
hex211cb28865

142215383141 has 16 divisors (see below), whose sum is σ = 167756022000. Its totient is φ = 119293160448.

The previous prime is 142215383137. The next prime is 142215383143. The reversal of 142215383141 is 141383512241.

It can be written as a sum of positive squares in 8 ways, for example, as 549714916 + 141665668225 = 23446^2 + 376385^2 .

It is a cyclic number.

It is not a de Polignac number, because 142215383141 - 22 = 142215383137 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 (142215383143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11088566 + ... + 11101383.

It is an arithmetic number, because the mean of its divisors is an integer number (10484751375).

Almost surely, 2142215383141 is an apocalyptic number.

It is an amenable number.

142215383141 is a deficient number, since it is larger than the sum of its proper divisors (25540638859).

142215383141 is a wasteful number, since it uses less digits than its factorization.

142215383141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22190008.

The product of its digits is 23040, while the sum is 35.

Adding to 142215383141 its reverse (141383512241), we get a palindrome (283598895382).

The spelling of 142215383141 in words is "one hundred forty-two billion, two hundred fifteen million, three hundred eighty-three thousand, one hundred forty-one".

Divisors: 1 13 17 29 221 377 493 6409 22189949 288469337 377229133 643508521 4903978729 8365610773 10939644857 142215383141