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1380873184 = 25198392707
BaseRepresentation
bin101001001001110…
…0111001111100000
310120020100121220021
41102103213033200
510312000420214
6345004523224
746135141225
oct12223471740
93506317807
101380873184
11649515509
12326550514
13190112932
14d157394c
1581367924
hex524e73e0

1380873184 has 48 divisors (see below), whose sum is σ = 2866147200. Its totient is φ = 653076864.

The previous prime is 1380873173. The next prime is 1380873187. The reversal of 1380873184 is 4813780831.

It is a self number, because there is not a number n which added to its sum of digits gives 1380873184.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380873187) 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, 508759 + ... + 511465.

It is an arithmetic number, because the mean of its divisors is an integer number (59711400).

Almost surely, 21380873184 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 1380873184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433073600).

1380873184 is an abundant number, since it is smaller than the sum of its proper divisors (1485274016).

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

1380873184 is a wasteful number, since it uses less digits than its factorization.

1380873184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3567 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1380873184 is about 37160.1020450698. The cubic root of 1380873184 is about 1113.5710502311.

The spelling of 1380873184 in words is "one billion, three hundred eighty million, eight hundred seventy-three thousand, one hundred eighty-four".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 839 1678 2707 3356 5414 6712 10828 13424 15941 21656 26848 31882 43312 51433 63764 86624 102866 127528 205732 255056 411464 510112 822928 1645856 2271173 4542346 9084692 18169384 36338768 43152287 72677536 86304574 172609148 345218296 690436592 1380873184