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142578467845 = 5112235666889
BaseRepresentation
bin1000010011001001010…
…1101100010000000101
3111122000112112121200021
42010302111230100011
54314000041432340
6145255531215141
713205140660162
oct2046225542005
9448015477607
10142578467845
1155515912200
12237712a74b1
13105a2b36308
146c87c67069
153a9729be4a
hex213256c405

142578467845 has 12 divisors (see below), whose sum is σ = 188062178220. Its totient is φ = 103693430720.

The previous prime is 142578467833. The next prime is 142578467861. The reversal of 142578467845 is 548764875241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46606764996 + 95971702849 = 215886^2 + 309793^2 .

It is not a de Polignac number, because 142578467845 - 25 = 142578467813 is a prime.

It is a congruent 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, 117832840 + ... + 117834049.

It is an arithmetic number, because the mean of its divisors is an integer number (15671848185).

Almost surely, 2142578467845 is an apocalyptic number.

It is an amenable number.

142578467845 is a deficient number, since it is larger than the sum of its proper divisors (45483710375).

142578467845 is a wasteful number, since it uses less digits than its factorization.

142578467845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235666916 (or 235666905 counting only the distinct ones).

The product of its digits is 60211200, while the sum is 61.

The spelling of 142578467845 in words is "one hundred forty-two billion, five hundred seventy-eight million, four hundred sixty-seven thousand, eight hundred forty-five".

Divisors: 1 5 11 55 121 605 235666889 1178334445 2592335779 12961678895 28515693569 142578467845