Search a number
-
+
213886080 = 2732571523
BaseRepresentation
bin11001011111110…
…10010010000000
3112220110112112200
430233322102000
5414223323310
633120153200
75205000402
oct1457722200
9486415480
10213886080
11aa807861
125b768800
1335409915
1420598b72
1513b9d9c0
hexcbfa480

213886080 has 192 divisors, whose sum is σ = 750409920. Its totient is φ = 56125440.

The previous prime is 213886063. The next prime is 213886093. The reversal of 213886080 is 80688312.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408699 + ... + 409221.

It is an arithmetic number, because the mean of its divisors is an integer number (3908385).

Almost surely, 2213886080 is an apocalyptic number.

213886080 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 213886080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375204960).

213886080 is an abundant number, since it is smaller than the sum of its proper divisors (536523840).

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

213886080 is a wasteful number, since it uses less digits than its factorization.

213886080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 213886080 is about 14624.8446145592. The cubic root of 213886080 is about 598.0362464653.

The spelling of 213886080 in words is "two hundred thirteen million, eight hundred eighty-six thousand, eighty".