Search a number
-
+
29966128608 = 2531324011321
BaseRepresentation
bin11011111010000111…
…101101010111100000
32212100101120001120010
4123322013231113200
5442332312103413
621433302044520
72110405614303
oct337207552740
985311501503
1029966128608
1111788109a49
125983719740
132a97365c60
141643b4cb3a
15ba5b87dc3
hex6fa1ed5e0

29966128608 has 48 divisors (see below), whose sum is σ = 84711944016. Its totient is φ = 9220346880.

The previous prime is 29966128607. The next prime is 29966128679. The reversal of 29966128608 is 80682166992.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29966128603) 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, 12004413 + ... + 12006908.

It is an arithmetic number, because the mean of its divisors is an integer number (1764832167).

Almost surely, 229966128608 is an apocalyptic number.

It is an amenable number.

29966128608 is an abundant number, since it is smaller than the sum of its proper divisors (54745815408).

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

29966128608 is a wasteful number, since it uses less digits than its factorization.

29966128608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24011347 (or 24011339 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 29966128608 in words is "twenty-nine billion, nine hundred sixty-six million, one hundred twenty-eight thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 24011321 48022642 72033963 96045284 144067926 192090568 288135852 312147173 384181136 576271704 624294346 768362272 936441519 1152543408 1248588692 1872883038 2305086816 2497177384 3745766076 4994354768 7491532152 9988709536 14983064304 29966128608