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10201320220 = 22571317536221
BaseRepresentation
bin10011000000000101…
…11100101100011100
3222022221120202112211
421200002330230130
5131343014221340
64404133410204
7510540535240
oct114002745434
928287522484
1010201320220
114365419963
121b88499964
13c67617670
146cabaa420
153ea8c85ea
hex2600bcb1c

10201320220 has 192 divisors, whose sum is σ = 28448775936. Its totient is φ = 2980823040.

The previous prime is 10201320211. The next prime is 10201320251. The reversal of 10201320220 is 2202310201.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 10201320220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1636710 + ... + 1642930.

It is an arithmetic number, because the mean of its divisors is an integer number (148170708).

Almost surely, 210201320220 is an apocalyptic number.

10201320220 is a gapful number since it is divisible by the number (10) 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 10201320220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14224387968).

10201320220 is an abundant number, since it is smaller than the sum of its proper divisors (18247455716).

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

10201320220 is a wasteful number, since it uses less digits than its factorization.

10201320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6320 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10201320220 its reverse (2202310201), we get a palindrome (12403630421).

The spelling of 10201320220 in words is "ten billion, two hundred one million, three hundred twenty thousand, two hundred twenty".