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43930468133440 = 26571719387715661
BaseRepresentation
bin10011111110100010110111…
…11100101010101001000000
312202112201012212010220201121
421333101123330222221000
521224224044320232230
6233233213425042024
712152604644662540
oct1177213374525100
9182481185126647
1043930468133440
1112aa7896aa6209
124b16028a86314
131b68818c24195
14abc363061320
15512aeb73777a
hex27f45bf2aa40

43930468133440 has 448 divisors, whose sum is σ = 133291508636160. Its totient is φ = 13425461821440.

The previous prime is 43930468133417. The next prime is 43930468133449. The reversal of 43930468133440 is 4433186403934.

It is a tau number, because it is divible by the number of its divisors (448).

It is not an unprimeable number, because it can be changed into a prime (43930468133449) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2805079210 + ... + 2805094870.

It is an arithmetic number, because the mean of its divisors is an integer number (297525688920).

Almost surely, 243930468133440 is an apocalyptic number.

43930468133440 is a gapful number since it is divisible by the number (40) 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 43930468133440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66645754318080).

43930468133440 is an abundant number, since it is smaller than the sum of its proper divisors (89361040502720).

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

43930468133440 is a wasteful number, since it uses less digits than its factorization.

43930468133440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19598 (or 19588 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 52.

The spelling of 43930468133440 in words is "forty-three trillion, nine hundred thirty billion, four hundred sixty-eight million, one hundred thirty-three thousand, four hundred forty".