Search a number
-
+
29583423880 = 2356779139729
BaseRepresentation
bin11011100011010011…
…110011100110001000
32211100201102122100221
4123203103303212020
5441041324031010
621331311235424
72065050645133
oct334323634610
984321378327
1029583423880
111160108724a
125897518b74
132a35c9b95a
141608dab21a
15b8228ddda
hex6e34f3988

29583423880 has 64 divisors (see below), whose sum is σ = 68411808000. Its totient is φ = 11509115904.

The previous prime is 29583423841. The next prime is 29583423901. The reversal of 29583423880 is 8832438592.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141856 + ... + 281584.

It is an arithmetic number, because the mean of its divisors is an integer number (1068934500).

Almost surely, 229583423880 is an apocalyptic number.

29583423880 is a gapful number since it is divisible by the number (20) 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 29583423880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34205904000).

29583423880 is an abundant number, since it is smaller than the sum of its proper divisors (38828384120).

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

29583423880 is a wasteful number, since it uses less digits than its factorization.

29583423880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139886 (or 139882 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 29583423880 in words is "twenty-nine billion, five hundred eighty-three million, four hundred twenty-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 67 79 134 158 268 316 335 395 536 632 670 790 1340 1580 2680 3160 5293 10586 21172 26465 42344 52930 105860 139729 211720 279458 558916 698645 1117832 1397290 2794580 5589160 9361843 11038591 18723686 22077182 37447372 44154364 46809215 55192955 74894744 88308728 93618430 110385910 187236860 220771820 374473720 441543640 739585597 1479171194 2958342388 3697927985 5916684776 7395855970 14791711940 29583423880