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30202042012 = 229187821869
BaseRepresentation
bin11100001000001011…
…101001011010011100
32212221211110200220121
4130020023221122130
5443323210321022
621512530324324
72116302056422
oct341013513234
985854420817
1030202042012
11118992a11aa
125a2a7296a4
132b041b599c
1416671dd112
15bbb7382c7
hex7082e969c

30202042012 has 12 divisors (see below), whose sum is σ = 52859390920. Its totient is φ = 15099358896.

The previous prime is 30202041977. The next prime is 30202042037. The reversal of 30202042012 is 21024020203.

It is a super-2 number, since 2×302020420122 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374187 + ... + 447682.

Almost surely, 230202042012 is an apocalyptic number.

It is an amenable number.

30202042012 is a deficient number, since it is larger than the sum of its proper divisors (22657348908).

30202042012 is a wasteful number, since it uses less digits than its factorization.

30202042012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831060 (or 831058 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30202042012 its reverse (21024020203), we get a palindrome (51226062215).

The spelling of 30202042012 in words is "thirty billion, two hundred two million, forty-two thousand, twelve".

Divisors: 1 2 4 9187 18374 36748 821869 1643738 3287476 7550510503 15101021006 30202042012