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30324031531 = 61592783873
BaseRepresentation
bin11100001111011101…
…000000000000101011
32220021100000102001221
4130033131000000223
5444100423002111
621533005122511
72122313005123
oct341735000053
986240012057
1030324031531
1111951141792
125a63559437
132b23558331
1416794b5c83
15bc72d3371
hex70f74002b

30324031531 has 8 divisors (see below), whose sum is σ = 30826714464. Its totient is φ = 29821528320.

The previous prime is 30324031523. The next prime is 30324031541. The reversal of 30324031531 is 13513042303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30324031531 - 23 = 30324031523 is a prime.

It is a super-2 number, since 2×303240315312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30324031496 and 30324031505.

It is not an unprimeable number, because it can be changed into a prime (30324031541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319611 + ... + 403483.

It is an arithmetic number, because the mean of its divisors is an integer number (3853339308).

Almost surely, 230324031531 is an apocalyptic number.

30324031531 is a deficient number, since it is larger than the sum of its proper divisors (502682933).

30324031531 is an equidigital number, since it uses as much as digits as its factorization.

30324031531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89861.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 30324031531 its reverse (13513042303), we get a palindrome (43837073834).

The spelling of 30324031531 in words is "thirty billion, three hundred twenty-four million, thirty-one thousand, five hundred thirty-one".

Divisors: 1 61 5927 83873 361547 5116253 497115271 30324031531