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230518666935540 = 223451930612446663
BaseRepresentation
bin110100011010011111001111…
…010000011011110011110100
31010020012100222020200002220000
4310122133033100123303310
5220203304212213414130
62134134451425111300
766361265314146114
oct6432371720336364
91106170866602800
10230518666935540
11674a546596a855
1221a3008b188530
139b81a80caca89
1440cd23d42d044
151b9b4bd695260
hexd1a7cf41bcf4

230518666935540 has 240 divisors, whose sum is σ = 761454880475520. Its totient is φ = 58217245758720.

The previous prime is 230518666935517. The next prime is 230518666935607. The reversal of 230518666935540 is 45539666815032.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 92994249 + ... + 95440911.

It is an arithmetic number, because the mean of its divisors is an integer number (3172728668648).

Almost surely, 2230518666935540 is an apocalyptic number.

230518666935540 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 230518666935540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380727440237760).

230518666935540 is an abundant number, since it is smaller than the sum of its proper divisors (530936213539980).

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

230518666935540 is a wasteful number, since it uses less digits than its factorization.

230518666935540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449764 (or 2449753 counting only the distinct ones).

The product of its (nonzero) digits is 139968000, while the sum is 63.

The spelling of 230518666935540 in words is "two hundred thirty trillion, five hundred eighteen billion, six hundred sixty-six million, nine hundred thirty-five thousand, five hundred forty".