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2008907953 = 13352943789
BaseRepresentation
bin111011110111101…
…1000000010110001
312012000010002122021
41313233120002301
513103240023303
6531201511441
7100532302333
oct16757300261
95160102567
102008907953
11940a81308
12480942581
13260275b40
14150b37453
15bb571ebd
hex77bd80b1

2008907953 has 8 divisors (see below), whose sum is σ = 2164101800. Its totient is φ = 1853808768.

The previous prime is 2008907947. The next prime is 2008908017. The reversal of 2008907953 is 3597098002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45265984 + 1963641969 = 6728^2 + 44313^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2008907953 is a prime.

It is a super-2 number, since 2×20089079532 = 8071422327253300418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2008907903) 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 7 ways as a sum of consecutive naturals, for example, 23983 + ... + 67771.

It is an arithmetic number, because the mean of its divisors is an integer number (270512725).

Almost surely, 22008907953 is an apocalyptic number.

It is an amenable number.

2008907953 is a deficient number, since it is larger than the sum of its proper divisors (155193847).

2008907953 is a wasteful number, since it uses less digits than its factorization.

2008907953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47331.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 2008907953 is about 44820.8428412497. The cubic root of 2008907953 is about 1261.7888325295.

The spelling of 2008907953 in words is "two billion, eight million, nine hundred seven thousand, nine hundred fifty-three".

Divisors: 1 13 3529 43789 45877 569257 154531381 2008907953