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2144474023 = 2393238001
BaseRepresentation
bin111111111010010…
…0001001110100111
312112110012120022211
41333310201032213
513342441132043
6552443304251
7104066504566
oct17764411647
95473176284
102144474023
11a0055508a
124ba21b087
1328238cc53
14164b45bdd
15c83eea9d
hex7fd213a7

2144474023 has 4 divisors (see below), whose sum is σ = 2237712048. Its totient is φ = 2051236000.

The previous prime is 2144474021. The next prime is 2144474051. The reversal of 2144474023 is 3204744412.

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 2144474023 - 21 = 2144474021 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144474021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46618978 + ... + 46619023.

It is an arithmetic number, because the mean of its divisors is an integer number (559428012).

Almost surely, 22144474023 is an apocalyptic number.

2144474023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2144474023 is a deficient number, since it is larger than the sum of its proper divisors (93238025).

2144474023 is an equidigital number, since it uses as much as digits as its factorization.

2144474023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93238024.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 2144474023 is about 46308.4659970507. The cubic root of 2144474023 is about 1289.5561686498.

The spelling of 2144474023 in words is "two billion, one hundred forty-four million, four hundred seventy-four thousand, twenty-three".

Divisors: 1 23 93238001 2144474023