Search a number
-
+
17980348032 = 27335202647
BaseRepresentation
bin10000101111101101…
…100101011010000000
31201102002012022121000
4100233231211122000
5243310432114112
612132101132000
71204366302513
oct205755453200
951362168530
1017980348032
11769748a669
1235996ba000
13190713c6ba
14c27d92d7a
157037c57dc
hex42fb65680

17980348032 has 64 divisors (see below), whose sum is σ = 53067009600. Its totient is φ = 5993448192.

The previous prime is 17980348031. The next prime is 17980348081. The reversal of 17980348032 is 23084308971.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (17980348031) 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, 2597868 + ... + 2604779.

It is an arithmetic number, because the mean of its divisors is an integer number (829172025).

Almost surely, 217980348032 is an apocalyptic number.

17980348032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17980348032 is an abundant number, since it is smaller than the sum of its proper divisors (35086661568).

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

17980348032 is an equidigital number, since it uses as much as digits as its factorization.

17980348032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202670 (or 5202652 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 17980348032 in words is "seventeen billion, nine hundred eighty million, three hundred forty-eight thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 288 384 432 576 864 1152 1728 3456 5202647 10405294 15607941 20810588 31215882 41621176 46823823 62431764 83242352 93647646 124863528 140471469 166484704 187295292 249727056 280942938 332969408 374590584 499454112 561885876 665938816 749181168 998908224 1123771752 1498362336 1997816448 2247543504 2996724672 4495087008 5993449344 8990174016 17980348032