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2005623107 = 10343634463
BaseRepresentation
bin111011110001011…
…0110000101000011
312011202221012200022
41313202312011003
513101414414412
6531003244055
7100462341455
oct16742660503
95152835608
102005623107
1193a138364
1247b81962b
1325c695947
141505202d5
15bb123a72
hex778b6143

2005623107 has 8 divisors (see below), whose sum is σ = 2026013184. Its totient is φ = 1985250888.

The previous prime is 2005623047. The next prime is 2005623133. The reversal of 2005623107 is 7013265002.

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 2005623107 - 230 = 931881283 is a prime.

It is a super-3 number, since 3×20056231073 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005623187) 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, 447158 + ... + 451620.

It is an arithmetic number, because the mean of its divisors is an integer number (253251648).

Almost surely, 22005623107 is an apocalyptic number.

2005623107 is a deficient number, since it is larger than the sum of its proper divisors (20390077).

2005623107 is a wasteful number, since it uses less digits than its factorization.

2005623107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8929.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2005623107 is about 44784.1836701307. The cubic root of 2005623107 is about 1261.1007234920.

Adding to 2005623107 its reverse (7013265002), we get a palindrome (9018888109).

The spelling of 2005623107 in words is "two billion, five million, six hundred twenty-three thousand, one hundred seven".

Divisors: 1 103 4363 4463 449389 459689 19472069 2005623107