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30666101312729 = 247078912411461
BaseRepresentation
bin1101111100100000000100…
…00100110100110011011001
311000120122120022211102100002
412332100002010310303121
513004413133414001404
6145115451254022345
76313360402210541
oct676200204646331
9130518508742302
1030666101312729
119853469800223
1235333673479b5
131415a548a584c
14780366546321
15382a67d45c1e
hex1be402134cd9

30666101312729 has 4 divisors (see below), whose sum is σ = 30666116194980. Its totient is φ = 30666086430480.

The previous prime is 30666101312719. The next prime is 30666101312831. The reversal of 30666101312729 is 92721310166603.

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 27403916265625 + 3262185047104 = 5234875^2 + 1806152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30666101312729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30666101312719) 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, 3734942 + ... + 8676519.

It is an arithmetic number, because the mean of its divisors is an integer number (7666529048745).

Almost surely, 230666101312729 is an apocalyptic number.

It is an amenable number.

30666101312729 is a deficient number, since it is larger than the sum of its proper divisors (14882251).

30666101312729 is a wasteful number, since it uses less digits than its factorization.

30666101312729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14882250.

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 30666101312729 in words is "thirty trillion, six hundred sixty-six billion, one hundred one million, three hundred twelve thousand, seven hundred twenty-nine".

Divisors: 1 2470789 12411461 30666101312729