Search a number
-
+
138933384408000 = 26345372132171523
BaseRepresentation
bin11111100101101111110011…
…000001100110101111000000
3200012220220100102211102020000
4133211233303001212233000
5121202241032402024000
61211253040553120000
741156414532245100
oct3745576301465700
9605826312742200
10138933384408000
11402a5354570096
12136ba2793b9000
135c6a492224400
1426445a993b200
15110de9983c000
hex7e5bf3066bc0

138933384408000 has 5040 divisors, whose sum is σ = 685957339308384. Its totient is φ = 27570983731200.

The previous prime is 138933384407989. The next prime is 138933384408047. The reversal of 138933384408000 is 804483339831.

138933384408000 is a `hidden beast` number, since 1 + 3 + 8 + 93 + 3 + 38 + 440 + 80 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (5040).

It is a super-3 number, since 3×1389333844080003 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 719 ways as a sum of consecutive naturals, for example, 91223495239 + ... + 91223496761.

Almost surely, 2138933384408000 is an apocalyptic number.

138933384408000 is a gapful number since it is divisible by the number (10) 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 138933384408000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342978669654192).

138933384408000 is an abundant number, since it is smaller than the sum of its proper divisors (547023954900384).

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

138933384408000 is a wasteful number, since it uses less digits than its factorization.

138933384408000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 138933384408000 in words is "one hundred thirty-eight trillion, nine hundred thirty-three billion, three hundred eighty-four million, four hundred eight thousand".