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2120322005 = 51922319179
BaseRepresentation
bin111111001100001…
…1000101111010101
312110202202111222122
41332120120233111
513320300301010
6550221505325
7103354303544
oct17630305725
95422674878
102120322005
1199895933a
124b2112245
1327a384a09
1416185a15b
15c622d855
hex7e618bd5

2120322005 has 8 divisors (see below), whose sum is σ = 2678301600. Its totient is φ = 1606980816.

The previous prime is 2120321993. The next prime is 2120322007. The reversal of 2120322005 is 5002230212.

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 2120322005 - 224 = 2103544789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120322007) 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, 11159495 + ... + 11159684.

It is an arithmetic number, because the mean of its divisors is an integer number (334787700).

Almost surely, 22120322005 is an apocalyptic number.

It is an amenable number.

2120322005 is a deficient number, since it is larger than the sum of its proper divisors (557979595).

2120322005 is a wasteful number, since it uses less digits than its factorization.

2120322005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22319203.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2120322005 is about 46046.9543509666. The cubic root of 2120322005 is about 1284.6966949570.

Adding to 2120322005 its reverse (5002230212), we get a palindrome (7122552217).

The spelling of 2120322005 in words is "two billion, one hundred twenty million, three hundred twenty-two thousand, five".

Divisors: 1 5 19 95 22319179 111595895 424064401 2120322005