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142444444625 = 537419388529
BaseRepresentation
bin1000010010101001011…
…0011011101111010001
3111121200012100112101022
42010222112123233101
54313211234212000
6145234342445225
713201622542010
oct2045226335721
9447605315338
10142444444625
11554571a260a
1223734433815
131058113c532
146c7413aa77
153a8a626585
hex212a59bbd1

142444444625 has 32 divisors (see below), whose sum is σ = 203651884800. Its totient is φ = 97442822400.

The previous prime is 142444444621. The next prime is 142444444651. The reversal of 142444444625 is 526444444241.

142444444625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142444444625 - 22 = 142444444621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142444444621) 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 31 ways as a sum of consecutive naturals, for example, 172361 + ... + 560889.

It is an arithmetic number, because the mean of its divisors is an integer number (6364121400).

Almost surely, 2142444444625 is an apocalyptic number.

It is an amenable number.

142444444625 is a deficient number, since it is larger than the sum of its proper divisors (61207440175).

142444444625 is an equidigital number, since it uses as much as digits as its factorization.

142444444625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388970 (or 388960 counting only the distinct ones).

The product of its digits is 1966080, while the sum is 44.

Adding to 142444444625 its reverse (526444444241), we get a palindrome (668888888866).

The spelling of 142444444625 in words is "one hundred forty-two billion, four hundred forty-four million, four hundred forty-four thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 419 875 2095 2933 10475 14665 52375 73325 366625 388529 1942645 2719703 9713225 13598515 48566125 67992575 162793651 339962875 813968255 1139555557 4069841275 5697777785 20349206375 28488888925 142444444625