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2120313225 = 35267741759
BaseRepresentation
bin111111001100001…
…0110100110001001
312110202202001221110
41332120112212021
513320300010400
6550221400533
7103354236132
oct17630264611
95422661843
102120313225
11998952788
124b2109149
1327a380a14
14161856c89
15c622ae50
hex7e616989

2120313225 has 24 divisors (see below), whose sum is σ = 3510846720. Its totient is φ = 1129136320.

The previous prime is 2120313199. The next prime is 2120313233. The reversal of 2120313225 is 5223130212.

It is not a de Polignac number, because 2120313225 - 25 = 2120313193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29896 + ... + 71654.

It is an arithmetic number, because the mean of its divisors is an integer number (146285280).

Almost surely, 22120313225 is an apocalyptic number.

2120313225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2120313225 is a deficient number, since it is larger than the sum of its proper divisors (1390533495).

2120313225 is a wasteful number, since it uses less digits than its factorization.

2120313225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42449 (or 42444 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2120313225 is about 46046.8590134007. The cubic root of 2120313225 is about 1284.6949216961.

Adding to 2120313225 its reverse (5223130212), we get a palindrome (7343443437).

The spelling of 2120313225 in words is "two billion, one hundred twenty million, three hundred thirteen thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 75 677 2031 3385 10155 16925 41759 50775 125277 208795 626385 1043975 3131925 28270843 84812529 141354215 424062645 706771075 2120313225