Search a number
-
+
211012100000 = 255513198543
BaseRepresentation
bin1100010010000101001…
…1010001111110100000
3202011122210111022210222
43010201103101332200
511424123044200000
6240534305342212
721150035153552
oct3044123217640
9664583438728
10211012100000
1181542913999
1234a8b637968
1316b8a8c2190
14a2da8214d2
155750103a85
hex31214d1fa0

211012100000 has 288 divisors, whose sum is σ = 588697320960. Its totient is φ = 73802880000.

The previous prime is 211012099993. The next prime is 211012100017. The reversal of 211012100000 is 1210112.

It is a super-2 number, since 2×2110121000002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

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, 24695729 + ... + 24704271.

It is an arithmetic number, because the mean of its divisors is an integer number (2044087920).

Almost surely, 2211012100000 is an apocalyptic number.

211012100000 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 211012100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294348660480).

211012100000 is an abundant number, since it is smaller than the sum of its proper divisors (377685220960).

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

211012100000 is an equidigital number, since it uses as much as digits as its factorization.

211012100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8610 (or 8582 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 211012100000 its reverse (1210112), we get a palindrome (211013310112).

The spelling of 211012100000 in words is "two hundred eleven billion, twelve million, one hundred thousand".