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30123141012 = 22322377352021
BaseRepresentation
bin11100000011011110…
…101010011110010100
32212202100000010002100
4130003132222132110
5443143011003022
621501031242100
72114323321356
oct340336523624
985670003070
1030123141012
1111858800768
125a08219330
132ac0a4b8c3
14165a9410d6
15bb48501ac
hex7037aa794

30123141012 has 36 divisors (see below), whose sum is σ = 76176856756. Its totient is φ = 10036794240.

The previous prime is 30123140959. The next prime is 30123141047. The reversal of 30123141012 is 21014132103.

It can be written as a sum of positive squares in 2 ways, for example, as 3604321296 + 26518819716 = 60036^2 + 162846^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 90439 + ... + 261582.

Almost surely, 230123141012 is an apocalyptic number.

It is an amenable number.

30123141012 is an abundant number, since it is smaller than the sum of its proper divisors (46053715744).

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

30123141012 is a wasteful number, since it uses less digits than its factorization.

30123141012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354408 (or 354403 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30123141012 its reverse (21014132103), we get a palindrome (51137273115).

It can be divided in two parts, 301231 and 41012, that added together give a palindrome (342243).

The spelling of 30123141012 in words is "thirty billion, one hundred twenty-three million, one hundred forty-one thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 2377 4754 7131 9508 14262 21393 28524 42786 85572 352021 704042 1056063 1408084 2112126 3168189 4224252 6336378 12672756 836753917 1673507834 2510261751 3347015668 5020523502 7530785253 10041047004 15061570506 30123141012