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30142136532 = 2234853951749
BaseRepresentation
bin11100000100100111…
…001000000011010100
32212210122202012001010
4130010213020003110
5443212341332112
621502550332220
72114643635034
oct340447100324
985718665033
1030142136532
11118684a5342
125a1265a070
132ac496ca61
14165d2878c4
15bb635363c
hex7049c80d4

30142136532 has 24 divisors (see below), whose sum is σ = 70334460000. Its totient is φ = 10046977696.

The previous prime is 30142136513. The next prime is 30142136533. The reversal of 30142136532 is 23563124103.

It is a self number, because there is not a number n which added to its sum of digits gives 30142136532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142136533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556594 + ... + 608342.

It is an arithmetic number, because the mean of its divisors is an integer number (2930602500).

Almost surely, 230142136532 is an apocalyptic number.

It is an amenable number.

30142136532 is an abundant number, since it is smaller than the sum of its proper divisors (40192323468).

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

30142136532 is a wasteful number, since it uses less digits than its factorization.

30142136532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100295 (or 100293 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 30142136532 in words is "thirty billion, one hundred forty-two million, one hundred thirty-six thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 48539 51749 97078 103498 145617 155247 194156 206996 291234 310494 582468 620988 2511844711 5023689422 7535534133 10047378844 15071068266 30142136532