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30000025530257 = 40973349695673
BaseRepresentation
bin1101101001000111011001…
…10111010110111110010001
310221012222022100201211102012
412310203230313112332101
512413010023013432012
6143445453234232305
76214300412400356
oct664435467267621
9127188270654365
1030000025530257
119616a37349342
123446257a25695
131397cb480a903
1475a01a91462d
1537058216d622
hex1b48ecdd6f91

30000025530257 has 4 divisors (see below), whose sum is σ = 30073375226340. Its totient is φ = 29926675834176.

The previous prime is 30000025530253. The next prime is 30000025530259. The reversal of 30000025530257 is 75203552000003.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18676235203201 + 11323790327056 = 4321601^2 + 3365084^2 .

It is a cyclic number.

It is not a de Polignac number, because 30000025530257 - 22 = 30000025530253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30000025530253) 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, 36674847428 + ... + 36674848245.

It is an arithmetic number, because the mean of its divisors is an integer number (7518343806585).

Almost surely, 230000025530257 is an apocalyptic number.

It is an amenable number.

30000025530257 is a deficient number, since it is larger than the sum of its proper divisors (73349696083).

30000025530257 is an equidigital number, since it uses as much as digits as its factorization.

30000025530257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73349696082.

The product of its (nonzero) digits is 31500, while the sum is 32.

The spelling of 30000025530257 in words is "thirty trillion, twenty-five million, five hundred thirty thousand, two hundred fifty-seven".

Divisors: 1 409 73349695673 30000025530257