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142587812904 = 2336788674013
BaseRepresentation
bin1000010011001011100…
…1010101110000101000
3111122001012010101200120
42010302321111300220
54314004440003104
6145300503403240
713205313261225
oct2046271256050
9448035111616
10142587812904
1155520115299
1223774453520
13105a4a58a34
146c891ba94c
153a97ee5cd9
hex2132e55c28

142587812904 has 32 divisors (see below), whose sum is σ = 361789977120. Its totient is φ = 46819878336.

The previous prime is 142587812879. The next prime is 142587812947. The reversal of 142587812904 is 409218785241.

It is a super-4 number, since 4×1425878129044 (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44335399 + ... + 44338614.

It is an arithmetic number, because the mean of its divisors is an integer number (11305936785).

Almost surely, 2142587812904 is an apocalyptic number.

It is an amenable number.

142587812904 is an abundant number, since it is smaller than the sum of its proper divisors (219202164216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142587812904 is a wasteful number, since it uses less digits than its factorization.

142587812904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88674089 (or 88674085 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 142587812904 in words is "one hundred forty-two billion, five hundred eighty-seven million, eight hundred twelve thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 24 67 134 201 268 402 536 804 1608 88674013 177348026 266022039 354696052 532044078 709392104 1064088156 2128176312 5941158871 11882317742 17823476613 23764635484 35646953226 47529270968 71293906452 142587812904