Search a number
-
+
238399902259200 = 211335211192937769
BaseRepresentation
bin110110001101001011001101…
…011111010001100000000000
31011021002210211002100211202000
4312031023031133101200000
5222221420444434243300
62203011223030024000
7101133552551111553
oct6615131537214000
91137083732324660
10238399902259200
1169a63915830910
12228a35b8aa8000
13a3040255cb206
1442c288c84c69a
151c864ddd1bc00
hexd8d2cd7d1800

238399902259200 has 4608 divisors, whose sum is σ = 1069750281600000. Its totient is φ = 51368479948800.

The previous prime is 238399902259147. The next prime is 238399902259201. The reversal of 238399902259200 is 2952209993832.

238399902259200 is a `hidden beast` number, since 2 + 3 + 8 + 3 + 99 + 90 + 2 + 259 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (4608).

It is a super-2 number, since 2×2383999022592002 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238399902259201) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 310012876416 + ... + 310012877184.

It is an arithmetic number, because the mean of its divisors is an integer number (232150668750).

Almost surely, 2238399902259200 is an apocalyptic number.

238399902259200 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 238399902259200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534875140800000).

238399902259200 is an abundant number, since it is smaller than the sum of its proper divisors (831350379340800).

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

238399902259200 is a wasteful number, since it uses less digits than its factorization.

238399902259200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 63.

The spelling of 238399902259200 in words is "two hundred thirty-eight trillion, three hundred ninety-nine billion, nine hundred two million, two hundred fifty-nine thousand, two hundred".