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30606388853 = 101478963277
BaseRepresentation
bin11100100000010010…
…000110111001110101
32221000000022122111112
4130200102012321311
51000140213420403
622021013044405
72132312004245
oct344022067165
987000278445
1030606388853
1111a86565a47
125b22026705
132b69bb9981
1416a4bb5b25
15be1ea99d8
hex720486e75

30606388853 has 8 divisors (see below), whose sum is σ = 30916365240. Its totient is φ = 30296548800.

The previous prime is 30606388847. The next prime is 30606388871. The reversal of 30606388853 is 35888360603.

It can be written as a sum of positive squares in 4 ways, for example, as 294534244 + 30311854609 = 17162^2 + 174103^2 .

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 30606388853 - 210 = 30606387829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30606388823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452051 + ... + 515327.

It is an arithmetic number, because the mean of its divisors is an integer number (3864545655).

Almost surely, 230606388853 is an apocalyptic number.

It is an amenable number.

30606388853 is a deficient number, since it is larger than the sum of its proper divisors (309976387).

30606388853 is a wasteful number, since it uses less digits than its factorization.

30606388853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68167.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 30606388853 in words is "thirty billion, six hundred six million, three hundred eighty-eight thousand, eight hundred fifty-three".

Divisors: 1 101 4789 63277 483689 6390977 303033553 30606388853