Search a number
-
+
211002012000 = 25325313450859
BaseRepresentation
bin1100010010000010110…
…0110011000101100000
3202011122002111210200100
43010200230303011200
511424113003341000
6240533305222400
721146553336513
oct3044054630540
9664562453610
10211002012000
11815381536aa
1234a88191a00
1316b8879c550
14a2d9356d7a
15574e2aea00
hex3120b33160

211002012000 has 288 divisors, whose sum is σ = 806451478560. Its totient is φ = 51938841600.

The previous prime is 211002011953. The next prime is 211002012031. The reversal of 211002012000 is 210200112.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242571 + ... + 693429.

It is an arithmetic number, because the mean of its divisors is an integer number (2800178745).

Almost surely, 2211002012000 is an apocalyptic number.

211002012000 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 211002012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403225739280).

211002012000 is an abundant number, since it is smaller than the sum of its proper divisors (595449466560).

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

211002012000 is a wasteful number, since it uses less digits than its factorization.

211002012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450903 (or 450882 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 211002012000 its reverse (210200112), we get a palindrome (211212212112).

The spelling of 211002012000 in words is "two hundred eleven billion, two million, twelve thousand".