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30803351685 = 352053556779
BaseRepresentation
bin11100101100000001…
…011101100010000101
32221111201221101201020
4130230001131202011
51001041124223220
622052330421353
72140223112021
oct345401354205
987451841636
1030803351685
1112077764047
125b77b91859
132b9b94c722
1416c3007381
15c04414040
hex72c05d885

30803351685 has 8 divisors (see below), whose sum is σ = 49285362720. Its totient is φ = 16428454224.

The previous prime is 30803351681. The next prime is 30803351687. The reversal of 30803351685 is 58615330803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30803351685 - 22 = 30803351681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30803351681) 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, 1026778375 + ... + 1026778404.

It is an arithmetic number, because the mean of its divisors is an integer number (6160670340).

Almost surely, 230803351685 is an apocalyptic number.

It is an amenable number.

30803351685 is a deficient number, since it is larger than the sum of its proper divisors (18482011035).

30803351685 is a wasteful number, since it uses less digits than its factorization.

30803351685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053556787.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 30803351685 in words is "thirty billion, eight hundred three million, three hundred fifty-one thousand, six hundred eighty-five".

Divisors: 1 3 5 15 2053556779 6160670337 10267783895 30803351685