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2154481001 = 23686313649
BaseRepresentation
bin1000000001101010…
…1100010101101001
312120011000222022122
42000122230111221
513403021343001
6553442001025
7104250533501
oct20032542551
95504028278
102154481001
11a0616a512
12501646175
13284484a3a
141661cca01
15c9229b1b
hex806ac569

2154481001 has 8 divisors (see below), whose sum is σ = 2248646400. Its totient is φ = 2060356672.

The previous prime is 2154480983. The next prime is 2154481031. The reversal of 2154481001 is 1001844512.

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 2154481001 - 214 = 2154464617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2154481031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151025 + ... + 164673.

It is an arithmetic number, because the mean of its divisors is an integer number (281080800).

Almost surely, 22154481001 is an apocalyptic number.

It is an amenable number.

2154481001 is a deficient number, since it is larger than the sum of its proper divisors (94165399).

2154481001 is a wasteful number, since it uses less digits than its factorization.

2154481001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20535.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2154481001 is about 46416.3872032281. The cubic root of 2154481001 is about 1291.5589191806.

The spelling of 2154481001 in words is "two billion, one hundred fifty-four million, four hundred eighty-one thousand, one".

Divisors: 1 23 6863 13649 157849 313927 93673087 2154481001