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2001105001 = 71511893193
BaseRepresentation
bin111011101000110…
…0111000001101001
312011110102200000001
41313101213001221
513044240330001
6530322343001
7100406053240
oct16721470151
95143380001
102001105001
11937631895
1247a1baa61
1325b7732cc
1414daa5957
15baa30001
hex77467069

2001105001 has 8 divisors (see below), whose sum is σ = 2302123904. Its totient is φ = 1703872800.

The previous prime is 2001104957. The next prime is 2001105011. The reversal of 2001105001 is 1005011002.

It is a happy number.

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

It is not a de Polignac number, because 2001105001 - 223 = 1992716393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001105011) 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, 945540 + ... + 947653.

It is an arithmetic number, because the mean of its divisors is an integer number (287765488).

Almost surely, 22001105001 is an apocalyptic number.

It is an amenable number.

2001105001 is a deficient number, since it is larger than the sum of its proper divisors (301018903).

2001105001 is a wasteful number, since it uses less digits than its factorization.

2001105001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893351.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 2001105001 is about 44733.7121307857. The cubic root of 2001105001 is about 1260.1530428447.

Adding to 2001105001 its reverse (1005011002), we get a palindrome (3006116003).

The spelling of 2001105001 in words is "two billion, one million, one hundred five thousand, one".

Divisors: 1 7 151 1057 1893193 13252351 285872143 2001105001