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30285355750081 = 203071114913671
BaseRepresentation
bin1101110001011010110111…
…10111110001001011000001
310222020020210111212210220121
412320231123313301023001
512432143402033000311
6144224522251140241
76244021230265435
oct670553367611301
9128206714783817
1030285355750081
119716a46868673
123491608444681
1313b8b8733c303
14769b676309c5
15377bd19e5b71
hex1b8b5bdf12c1

30285355750081 has 4 divisors (see below), whose sum is σ = 30285372694464. Its totient is φ = 30285338805700.

The previous prime is 30285355750057. The next prime is 30285355750123. The reversal of 30285355750081 is 18005755358203.

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 not a de Polignac number, because 30285355750081 - 27 = 30285355749953 is a prime.

It is a super-3 number, since 3×302853557500813 (a number of 41 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 (30285355750381) 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, 5426125 + ... + 9487546.

It is an arithmetic number, because the mean of its divisors is an integer number (7571343173616).

Almost surely, 230285355750081 is an apocalyptic number.

It is an amenable number.

30285355750081 is a deficient number, since it is larger than the sum of its proper divisors (16944383).

30285355750081 is a wasteful number, since it uses less digits than its factorization.

30285355750081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16944382.

The product of its (nonzero) digits is 5040000, while the sum is 52.

The spelling of 30285355750081 in words is "thirty trillion, two hundred eighty-five billion, three hundred fifty-five million, seven hundred fifty thousand, eighty-one".

Divisors: 1 2030711 14913671 30285355750081