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30171206613 = 343329697823
BaseRepresentation
bin11100000110010110…
…000001001111010101
32212212200110002200210
4130012112001033111
5443242312102423
621505505400033
72115446011332
oct340626011725
985780402623
1030171206613
11118829500a9
125a20339019
132aca9aa6a2
141663093989
15bb8b96b93
hex7065813d5

30171206613 has 16 divisors (see below), whose sum is σ = 40339918080. Its totient is φ = 20058361344.

The previous prime is 30171206591. The next prime is 30171206621. The reversal of 30171206613 is 31660217103.

It is not a de Polignac number, because 30171206613 - 28 = 30171206357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30171206713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3852820 + ... + 3860642.

It is an arithmetic number, because the mean of its divisors is an integer number (2521244880).

Almost surely, 230171206613 is an apocalyptic number.

It is an amenable number.

30171206613 is a deficient number, since it is larger than the sum of its proper divisors (10168711467).

30171206613 is a wasteful number, since it uses less digits than its factorization.

30171206613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11228.

The product of its (nonzero) digits is 4536, while the sum is 30.

The spelling of 30171206613 in words is "thirty billion, one hundred seventy-one million, two hundred six thousand, six hundred thirteen".

Divisors: 1 3 433 1299 2969 7823 8907 23469 1285577 3387359 3856731 10162077 23226487 69679461 10057068871 30171206613