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30241311531 = 310080437177
BaseRepresentation
bin11100001010100001…
…011100101100101011
32220001120100210120020
4130022201130230223
5443413233432111
621520452131523
72120256623004
oct341241345453
986046323506
1030241311531
1111909482a52
125a3b906ba3
132b0c384ba2
14166c5021ab
15bbede3906
hex70a85cb2b

30241311531 has 4 divisors (see below), whose sum is σ = 40321748712. Its totient is φ = 20160874352.

The previous prime is 30241311523. The next prime is 30241311547. The reversal of 30241311531 is 13511314203.

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 30241311531 - 23 = 30241311523 is a prime.

It is a super-2 number, since 2×302413115312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30241311511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5040218586 + ... + 5040218591.

It is an arithmetic number, because the mean of its divisors is an integer number (10080437178).

Almost surely, 230241311531 is an apocalyptic number.

30241311531 is a deficient number, since it is larger than the sum of its proper divisors (10080437181).

30241311531 is a wasteful number, since it uses less digits than its factorization.

30241311531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080437180.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 30241311531 its reverse (13511314203), we get a palindrome (43752625734).

The spelling of 30241311531 in words is "thirty billion, two hundred forty-one million, three hundred eleven thousand, five hundred thirty-one".

Divisors: 1 3 10080437177 30241311531