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12030506254531 = 89191707718469
BaseRepresentation
bin1010111100010001001000…
…0011010100000011000011
31120121002211122222101211101
42233010102003110003003
53034101434100121111
641330423244555231
72351114105625052
oct257042203240303
946532748871741
1012030506254531
113919122167406
121423714252b17
1369361991987b
142d83cb36a399
1515ce1b1eabc1
hexaf1120d40c3

12030506254531 has 8 divisors (see below), whose sum is σ = 12229375161600. Its totient is φ = 11833052784960.

The previous prime is 12030506254519. The next prime is 12030506254607. The reversal of 12030506254531 is 13545260503021.

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 12030506254531 - 217 = 12030506123459 is a prime.

It is a super-3 number, since 3×120305062545313 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12030506254231) 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 7 ways as a sum of consecutive naturals, for example, 353842236 + ... + 353876233.

It is an arithmetic number, because the mean of its divisors is an integer number (1528671895200).

Almost surely, 212030506254531 is an apocalyptic number.

12030506254531 is a deficient number, since it is larger than the sum of its proper divisors (198868907069).

12030506254531 is an equidigital number, since it uses as much as digits as its factorization.

12030506254531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707718749.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 12030506254531 its reverse (13545260503021), we get a palindrome (25575766757552).

The spelling of 12030506254531 in words is "twelve trillion, thirty billion, five hundred six million, two hundred fifty-four thousand, five hundred thirty-one".

Divisors: 1 89 191 16999 707718469 62986943741 135174227579 12030506254531