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2201212445 = 51725896617
BaseRepresentation
bin1000001100110011…
…1101011000011101
312200101222011210212
42003030331120131
514002002244240
61002231342205
7105355665665
oct20314753035
95611864725
102201212445
11a2a588543
12515221965
13291067493
1416c4b51a5
15cd3ab165
hex8333d61d

2201212445 has 8 divisors (see below), whose sum is σ = 2796834744. Its totient is φ = 1657383424.

The previous prime is 2201212421. The next prime is 2201212457. The reversal of 2201212445 is 5442121022.

2201212445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 326235844 + 1874976601 = 18062^2 + 43301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201212445 - 214 = 2201196061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201212445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12948224 + ... + 12948393.

It is an arithmetic number, because the mean of its divisors is an integer number (349604343).

Almost surely, 22201212445 is an apocalyptic number.

It is an amenable number.

2201212445 is a deficient number, since it is larger than the sum of its proper divisors (595622299).

2201212445 is a wasteful number, since it uses less digits than its factorization.

2201212445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25896639.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2201212445 is about 46917.0805251137. The cubic root of 2201212445 is about 1300.8303265489.

Adding to 2201212445 its reverse (5442121022), we get a palindrome (7643333467).

The spelling of 2201212445 in words is "two billion, two hundred one million, two hundred twelve thousand, four hundred forty-five".

Divisors: 1 5 17 85 25896617 129483085 440242489 2201212445