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2201201320 = 235359153287
BaseRepresentation
bin1000001100110011…
…1010101010101000
312200101221121112211
42003030322222220
514002001420240
61002231214504
7105355621363
oct20314725250
95611847484
102201201320
11a2a58014a
12515217434
132910623b6
1416c4b10da
15cd3a7bea
hex8333aaa8

2201201320 has 32 divisors (see below), whose sum is σ = 4966531200. Its totient is φ = 878022208.

The previous prime is 2201201291. The next prime is 2201201329. The reversal of 2201201320 is 231021022.

It is a self number, because there is not a number n which added to its sum of digits gives 2201201320.

It is not an unprimeable number, because it can be changed into a prime (2201201329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62284 + ... + 91003.

It is an arithmetic number, because the mean of its divisors is an integer number (155204100).

Almost surely, 22201201320 is an apocalyptic number.

2201201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201201320 is an abundant number, since it is smaller than the sum of its proper divisors (2765329880).

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

2201201320 is a wasteful number, since it uses less digits than its factorization.

2201201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153657 (or 153653 counting only the distinct ones).

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

The square root of 2201201320 is about 46916.9619647308. The cubic root of 2201201320 is about 1300.8281350655.

Adding to 2201201320 its reverse (231021022), we get a palindrome (2432222342).

The spelling of 2201201320 in words is "two billion, two hundred one million, two hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 359 718 1436 1795 2872 3590 7180 14360 153287 306574 613148 766435 1226296 1532870 3065740 6131480 55030033 110060066 220120132 275150165 440240264 550300330 1100600660 2201201320