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142130531212 = 22169727417639
BaseRepresentation
bin1000010001011110100…
…0111100101110001100
3111120212022200002010121
42010113220330232030
54312040403444322
6145143250314324
713161061403365
oct2042750745614
9446768602117
10142130531212
1155305a8583a
12236672889a4
13105310ac857
146c44584b6c
153a6ccb9ec7
hex2117a3cb8c

142130531212 has 24 divisors (see below), whose sum is σ = 248998387680. Its totient is φ = 70988183040.

The previous prime is 142130531209. The next prime is 142130531311. The reversal of 142130531212 is 212135031241.

142130531212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 18602089 + ... + 18609727.

It is an arithmetic number, because the mean of its divisors is an integer number (10374932820).

Almost surely, 2142130531212 is an apocalyptic number.

It is an amenable number.

142130531212 is a deficient number, since it is larger than the sum of its proper divisors (106867856468).

142130531212 is a wasteful number, since it uses less digits than its factorization.

142130531212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12081 (or 12079 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 142130531212 its reverse (212135031241), we get a palindrome (354265562453).

The spelling of 142130531212 in words is "one hundred forty-two billion, one hundred thirty million, five hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 1697 2741 3394 5482 6788 7639 10964 15278 30556 4651477 9302954 12963383 18605908 20938499 25926766 41876998 51853532 83753996 35532632803 71065265606 142130531212