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380440001 = 1063935759
BaseRepresentation
bin10110101011010…
…000110111000001
3222111212100120102
4112223100313001
51234343040001
6101430052145
712266454344
oct2653206701
9874770512
10380440001
11185826227
12a74aa055
1360a83536
143875245b
15235ece6b
hex16ad0dc1

380440001 has 4 divisors (see below), whose sum is σ = 380486400. Its totient is φ = 380393604.

The previous prime is 380439979. The next prime is 380440019. The reversal of 380440001 is 100044083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 100044083 = 353283411.

It is a cyclic number.

It is not a de Polignac number, because 380440001 - 26 = 380439937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380440051) 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, 7241 + ... + 28518.

It is an arithmetic number, because the mean of its divisors is an integer number (95121600).

Almost surely, 2380440001 is an apocalyptic number.

It is an amenable number.

380440001 is a deficient number, since it is larger than the sum of its proper divisors (46399).

380440001 is a wasteful number, since it uses less digits than its factorization.

380440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46398.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 380440001 is about 19504.8712120844. The cubic root of 380440001 is about 724.5950975720.

Adding to 380440001 its reverse (100044083), we get a palindrome (480484084).

The spelling of 380440001 in words is "three hundred eighty million, four hundred forty thousand, one".

Divisors: 1 10639 35759 380440001