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2122330100 = 2252118272333
BaseRepresentation
bin111111010000000…
…0010111111110100
312110220112112120112
41332200002333310
513321304030400
6550332522152
7103410336212
oct17640027764
95426475515
102122330100
1199a000020
124b2920358
1327a908a37
14161c1dcb2
15c64c8835
hex7e802ff4

2122330100 has 72 divisors (see below), whose sum is σ = 5032365408. Its totient is φ = 770492800.

The previous prime is 2122330061. The next prime is 2122330103. The reversal of 2122330100 is 10332212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122330103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 908534 + ... + 910866.

It is an arithmetic number, because the mean of its divisors is an integer number (69893964).

Almost surely, 22122330100 is an apocalyptic number.

2122330100 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 2122330100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2516182704).

2122330100 is an abundant number, since it is smaller than the sum of its proper divisors (2910035308).

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

2122330100 is a wasteful number, since it uses less digits than its factorization.

2122330100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185 (or 3178 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2122330100 is about 46068.7540530455. The cubic root of 2122330100 is about 1285.1021332216.

Adding to 2122330100 its reverse (10332212), we get a palindrome (2132662312).

The spelling of 2122330100 in words is "two billion, one hundred twenty-two million, three hundred thirty thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 827 1100 1654 2333 3308 4135 4666 8270 9097 9332 11665 16540 18194 20675 23330 25663 36388 41350 45485 46660 51326 58325 82700 90970 102652 116650 128315 181940 227425 233300 256630 454850 513260 641575 909700 1283150 1929391 2566300 3858782 7717564 9646955 19293910 21223301 38587820 42446602 48234775 84893204 96469550 106116505 192939100 212233010 424466020 530582525 1061165050 2122330100