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30012101131 = 291034900039
BaseRepresentation
bin11011111100110111…
…000101001000001011
32212110121001201000011
4123330313011020023
5442431044214011
621442023252351
72111504436055
oct337467051013
985417051004
1030012101131
1111801059871
125996baa0b7
132aa3a4112c
141649cb88d5
15ba9c19621
hex6fcdc520b

30012101131 has 4 divisors (see below), whose sum is σ = 31047001200. Its totient is φ = 28977201064.

The previous prime is 30012101123. The next prime is 30012101137. The reversal of 30012101131 is 13110121003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30012101131 - 23 = 30012101123 is a prime.

It is a super-2 number, since 2×300121011312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30012101137) 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 3 ways as a sum of consecutive naturals, for example, 517449991 + ... + 517450048.

It is an arithmetic number, because the mean of its divisors is an integer number (7761750300).

Almost surely, 230012101131 is an apocalyptic number.

30012101131 is a deficient number, since it is larger than the sum of its proper divisors (1034900069).

30012101131 is a wasteful number, since it uses less digits than its factorization.

30012101131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034900068.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30012101131 its reverse (13110121003), we get a palindrome (43122222134).

The spelling of 30012101131 in words is "thirty billion, twelve million, one hundred one thousand, one hundred thirty-one".

Divisors: 1 29 1034900039 30012101131