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30032012131 = 1113133761843
BaseRepresentation
bin11011111110000011…
…000010001101100011
32212111222112021202121
4123332003002031203
5443001143342011
621444014125111
72112135614452
oct337603021543
985458467677
1030032012131
1111811319240
1259a17b0797
132aa7bc2ba4
14164c7bcb99
15bab84de71
hex6fe0c2363

30032012131 has 16 divisors (see below), whose sum is σ = 33110782848. Its totient is φ = 27012585600.

The previous prime is 30032012117. The next prime is 30032012137. The reversal of 30032012131 is 13121023003.

It is not a de Polignac number, because 30032012131 - 223 = 30023623523 is a prime.

It is a super-2 number, since 2×300320121312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30032012137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454696 + ... + 516538.

It is an arithmetic number, because the mean of its divisors is an integer number (2069423928).

Almost surely, 230032012131 is an apocalyptic number.

30032012131 is a deficient number, since it is larger than the sum of its proper divisors (3078770717).

30032012131 is a wasteful number, since it uses less digits than its factorization.

30032012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62322.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30032012131 its reverse (13121023003), we get a palindrome (43153035134).

The spelling of 30032012131 in words is "thirty billion, thirty-two million, twelve thousand, one hundred thirty-one".

Divisors: 1 11 131 337 1441 3707 44147 61843 485617 680273 8101433 20841091 89115763 229252001 2730182921 30032012131