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30010212131 = 191579484849
BaseRepresentation
bin11011111100101111…
…110111111100100011
32212110110111201210012
4123330233313330203
5442430103242011
621441514555135
72111452410554
oct337457677443
985413451705
1030010212131
11117aaa89609
125996438aab
132aa352c393
14164994632b
15ba9994a8b
hex6fcbf7f23

30010212131 has 4 divisors (see below), whose sum is σ = 31589697000. Its totient is φ = 28430727264.

The previous prime is 30010212107. The next prime is 30010212139. The reversal of 30010212131 is 13121201003.

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 30010212131 - 222 = 30006017827 is a prime.

It is a super-2 number, since 2×300102121312 (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 (30010212139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789742406 + ... + 789742443.

It is an arithmetic number, because the mean of its divisors is an integer number (7897424250).

Almost surely, 230010212131 is an apocalyptic number.

30010212131 is a deficient number, since it is larger than the sum of its proper divisors (1579484869).

30010212131 is a wasteful number, since it uses less digits than its factorization.

30010212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579484868.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30010212131 its reverse (13121201003), we get a palindrome (43131413134).

The spelling of 30010212131 in words is "thirty billion, ten million, two hundred twelve thousand, one hundred thirty-one".

Divisors: 1 19 1579484849 30010212131