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142242144425 = 5236715503231
BaseRepresentation
bin1000010001111001001…
…0101110000010101001
3111121011002200121200022
42010132102232002221
54312302442110200
6145202314450225
713163615164343
oct2043622560251
9447132617608
10142242144425
1155362a89467
1223698733975
131054b25b284
146c5531a293
153a779b5885
hex211e4ae0a9

142242144425 has 12 divisors (see below), whose sum is σ = 176860870656. Its totient is φ = 113483643600.

The previous prime is 142242144409. The next prime is 142242144433. The reversal of 142242144425 is 524441242241.

It is not a de Polignac number, because 142242144425 - 24 = 142242144409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7742441 + ... + 7760790.

It is an arithmetic number, because the mean of its divisors is an integer number (14738405888).

Almost surely, 2142242144425 is an apocalyptic number.

It is an amenable number.

142242144425 is a deficient number, since it is larger than the sum of its proper divisors (34618726231).

142242144425 is a wasteful number, since it uses less digits than its factorization.

142242144425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15503608 (or 15503603 counting only the distinct ones).

The product of its digits is 81920, while the sum is 35.

Adding to 142242144425 its reverse (524441242241), we get a palindrome (666683386666).

The spelling of 142242144425 in words is "one hundred forty-two billion, two hundred forty-two million, one hundred forty-four thousand, four hundred twenty-five".

Divisors: 1 5 25 367 1835 9175 15503231 77516155 387580775 5689685777 28448428885 142242144425