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30647354164 = 22729211178877
BaseRepresentation
bin11100100010101110…
…011000001100110100
32221002212101220100021
4130202232120030310
51000231210313124
622025035054524
72133320132530
oct344256301464
987085356307
1030647354164
1111aa76a5879
125b338a1444
132b755309bb
1416aa3dabc0
15be589c7e4
hex722b98334

30647354164 has 48 divisors (see below), whose sum is σ = 63709188480. Its totient is φ = 12621490560.

The previous prime is 30647354161. The next prime is 30647354207. The reversal of 30647354164 is 46145374603.

It is a self number, because there is not a number n which added to its sum of digits gives 30647354164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30647354161) 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, 81894 + ... + 260770.

It is an arithmetic number, because the mean of its divisors is an integer number (1327274760).

Almost surely, 230647354164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30647354164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31854594240).

30647354164 is an abundant number, since it is smaller than the sum of its proper divisors (33061834316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30647354164 is a wasteful number, since it uses less digits than its factorization.

30647354164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179128 (or 179126 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 30647354164 in words is "thirty billion, six hundred forty-seven million, three hundred fifty-four thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 29 58 116 203 211 406 422 812 844 1477 2954 5908 6119 12238 24476 42833 85666 171332 178877 357754 715508 1252139 2504278 5008556 5187433 10374866 20749732 36312031 37743047 72624062 75486094 145248124 150972188 264201329 528402658 1056805316 1094548363 2189096726 4378193452 7661838541 15323677082 30647354164