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2001041748 = 223255584493
BaseRepresentation
bin111011101000101…
…0111100101010100
312011110022110020100
41313101113211110
513044231313443
6530321134100
7100405400646
oct16721274524
95143273210
102001041748
11937599312
1247a18a330
1325b750594
1414da8a896
15baa1b3d3
hex77457954

2001041748 has 18 divisors (see below), whose sum is σ = 5058188954. Its totient is φ = 667013904.

The previous prime is 2001041741. The next prime is 2001041761. The reversal of 2001041748 is 8471401002.

2001041748 is a `hidden beast` number, since 200 + 1 + 0 + 417 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1402652304 + 598389444 = 37452^2 + 24462^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001041741) 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 5 ways as a sum of consecutive naturals, for example, 27792211 + ... + 27792282.

Almost surely, 22001041748 is an apocalyptic number.

It is an amenable number.

2001041748 is an abundant number, since it is smaller than the sum of its proper divisors (3057147206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001041748 is a wasteful number, since it uses less digits than its factorization.

2001041748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55584503 (or 55584498 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 2001041748 is about 44733.0051304403. The cubic root of 2001041748 is about 1260.1397652972.

The spelling of 2001041748 in words is "two billion, one million, forty-one thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 55584493 111168986 166753479 222337972 333506958 500260437 667013916 1000520874 2001041748