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2371987225 = 52349271861
BaseRepresentation
bin1000110101100001…
…1010011100011001
320010022022102202201
42031120122130121
514324212042400
61031211530201
7112531362436
oct21530323431
96108272681
102371987225
111007a1a123
12562459961
132ba55b34a
1418704ab8d
15dd39106a
hex8d61a719

2371987225 has 12 divisors (see below), whose sum is σ = 2949702700. Its totient is φ = 1892145600.

The previous prime is 2371987213. The next prime is 2371987253. The reversal of 2371987225 is 5227891732.

It can be written as a sum of positive squares in 6 ways, for example, as 176783616 + 2195203609 = 13296^2 + 46853^2 .

It is not a de Polignac number, because 2371987225 - 25 = 2371987193 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127206 + ... + 144655.

Almost surely, 22371987225 is an apocalyptic number.

2371987225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2371987225 is a deficient number, since it is larger than the sum of its proper divisors (577715475).

2371987225 is a wasteful number, since it uses less digits than its factorization.

2371987225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272220 (or 272215 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 2371987225 is about 48703.0514957739. The cubic root of 2371987225 is about 1333.6364246729.

The spelling of 2371987225 in words is "two billion, three hundred seventy-one million, nine hundred eighty-seven thousand, two hundred twenty-five".

Divisors: 1 5 25 349 1745 8725 271861 1359305 6796525 94879489 474397445 2371987225