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30512240515241 = 191605907395539
BaseRepresentation
bin1101111000000001011110…
…10000011101100010101001
311000000221102111121001221222
412330000233100131202221
512444403032032441431
6144521044011111425
76266302523052122
oct674005720354251
9130027374531858
1030512240515241
1197a4194355851
123509587742575
1314043a44c3044
14776b2c119049
1537da6033b57b
hex1bc02f41d8a9

30512240515241 has 4 divisors (see below), whose sum is σ = 32118147910800. Its totient is φ = 28906333119684.

The previous prime is 30512240515219. The next prime is 30512240515259. The reversal of 30512240515241 is 14251504221503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30512240515241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30512240515291) 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, 802953697751 + ... + 802953697788.

It is an arithmetic number, because the mean of its divisors is an integer number (8029536977700).

Almost surely, 230512240515241 is an apocalyptic number.

It is an amenable number.

30512240515241 is a deficient number, since it is larger than the sum of its proper divisors (1605907395559).

30512240515241 is a wasteful number, since it uses less digits than its factorization.

30512240515241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605907395558.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 30512240515241 its reverse (14251504221503), we get a palindrome (44763744736744).

The spelling of 30512240515241 in words is "thirty trillion, five hundred twelve billion, two hundred forty million, five hundred fifteen thousand, two hundred forty-one".

Divisors: 1 19 1605907395539 30512240515241