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2001056107 = 3164550197
BaseRepresentation
bin111011101000101…
…1011000101101011
312011110100011221011
41313101123011223
513044232243412
6530321324351
7100405460551
oct16721330553
95143304834
102001056107
119375a9086
1247a1966b7
1325b756c8b
1414da91bd1
15baa207a7
hex7745b16b

2001056107 has 4 divisors (see below), whose sum is σ = 2065606336. Its totient is φ = 1936505880.

The previous prime is 2001056063. The next prime is 2001056131. The reversal of 2001056107 is 7016501002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001056107 - 223 = 1992667499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001056177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32275068 + ... + 32275129.

It is an arithmetic number, because the mean of its divisors is an integer number (516401584).

Almost surely, 22001056107 is an apocalyptic number.

2001056107 is a deficient number, since it is larger than the sum of its proper divisors (64550229).

2001056107 is an equidigital number, since it uses as much as digits as its factorization.

2001056107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64550228.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2001056107 is about 44733.1656268590. The cubic root of 2001056107 is about 1260.1427794445.

Adding to 2001056107 its reverse (7016501002), we get a palindrome (9017557109).

The spelling of 2001056107 in words is "two billion, one million, fifty-six thousand, one hundred seven".

Divisors: 1 31 64550197 2001056107