Search a number
-
+
20120202021000 = 233531011511572801
BaseRepresentation
bin1001001001100100110010…
…11111101000100010001000
32122020110202110202211212110
410210302121133220202020
510114122133204133000
6110443032044342320
74144431235236534
oct444623137504210
978213673684773
1020120202021000
116457a25565564
12230b51ab449a0
13b2c4332b2253
144d7b74350bc4
1524d58c944850
hex124c997e8888

20120202021000 has 512 divisors, whose sum is σ = 64245812567040. Its totient is φ = 5241600000000.

The previous prime is 20120202020999. The next prime is 20120202021053. The reversal of 20120202021000 is 12020202102.

It is a super-3 number, since 3×201202020210003 (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7183219600 + ... + 7183222400.

It is an arithmetic number, because the mean of its divisors is an integer number (125480102670).

Almost surely, 220120202021000 is an apocalyptic number.

20120202021000 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 20120202021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32122906283520).

20120202021000 is an abundant number, since it is smaller than the sum of its proper divisors (44125610546040).

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

20120202021000 is a wasteful number, since it uses less digits than its factorization.

20120202021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234 (or 3220 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20120202021000 its reverse (12020202102), we get a palindrome (20132222223102).

The spelling of 20120202021000 in words is "twenty trillion, one hundred twenty billion, two hundred two million, twenty-one thousand".