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30112130031 = 31910313936899
BaseRepresentation
bin11100000010110100…
…101010001111101111
32212201120021200212020
4130002310222033233
5443132201130111
621455555241223
72114130611364
oct340264521757
985646250766
1030112130031
111185256aa85
125a045a9213
132abb694b29
1416592b646b
15bb38c7906
hex702d2a3ef

30112130031 has 32 divisors (see below), whose sum is σ = 42981120000. Its totient is φ = 18697544928.

The previous prime is 30112130029. The next prime is 30112130057. The reversal of 30112130031 is 13003121103.

It is not a de Polignac number, because 30112130031 - 21 = 30112130029 is a prime.

It is a super-2 number, since 2×301121300312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112132031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 797620 + ... + 834518.

It is an arithmetic number, because the mean of its divisors is an integer number (1343160000).

Almost surely, 230112130031 is an apocalyptic number.

30112130031 is a deficient number, since it is larger than the sum of its proper divisors (12868989969).

30112130031 is a wasteful number, since it uses less digits than its factorization.

30112130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37163.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 30112130031 its reverse (13003121103), we get a palindrome (43115251134).

The spelling of 30112130031 in words is "thirty billion, one hundred twelve million, one hundred thirty thousand, thirty-one".

Divisors: 1 3 19 57 103 139 309 417 1957 2641 5871 7923 14317 36899 42951 110697 272023 701081 816069 2103243 3800597 5128961 11401791 15386883 72211343 97450259 216634029 292350777 528282983 1584848949 10037376677 30112130031