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29681444304 = 2434177391823
BaseRepresentation
bin11011101001001001…
…101110010111010000
32211121112212121010000
4123221021232113100
5441241422204204
621345132210000
72100351054021
oct335111562720
984545777100
1029681444304
1111651446466
125904309900
132a5039b3c5
141618004c48
15b8aba2039
hex6e926e5d0

29681444304 has 200 divisors, whose sum is σ = 91133095680. Its totient is φ = 9294124032.

The previous prime is 29681444279. The next prime is 29681444311. The reversal of 29681444304 is 40344418692.

29681444304 is a `hidden beast` number, since 296 + 8 + 14 + 44 + 304 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 29681444304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16280737 + ... + 16282559.

Almost surely, 229681444304 is an apocalyptic number.

29681444304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29681444304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45566547840).

29681444304 is an abundant number, since it is smaller than the sum of its proper divisors (61451651376).

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

29681444304 is a wasteful number, since it uses less digits than its factorization.

29681444304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 29681444304 in words is "twenty-nine billion, six hundred eighty-one million, four hundred forty-four thousand, three hundred four".