Search a number
-
+
381040001 = 4876071289
BaseRepresentation
bin10110101101100…
…011010110000001
3222112222211121122
4112231203112001
51240021240001
6101451002025
712304533536
oct2655432601
9875884548
10381040001
111860a5aa1
12a7739315
1360c33674
143886ad8d
15236bab1b
hex16b63581

381040001 has 8 divisors (see below), whose sum is σ = 382748160. Its totient is φ = 379336608.

The previous prime is 381039983. The next prime is 381040007. The reversal of 381040001 is 100040183.

It is a happy number.

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 381040001 - 222 = 376845697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381040007) 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, 294965 + ... + 296253.

It is an arithmetic number, because the mean of its divisors is an integer number (47843520).

Almost surely, 2381040001 is an apocalyptic number.

It is an amenable number.

381040001 is a deficient number, since it is larger than the sum of its proper divisors (1708159).

381040001 is a wasteful number, since it uses less digits than its factorization.

381040001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 381040001 is about 19520.2459257049. The cubic root of 381040001 is about 724.9758222615.

Adding to 381040001 its reverse (100040183), we get a palindrome (481080184).

The spelling of 381040001 in words is "three hundred eighty-one million, forty thousand, one".

Divisors: 1 487 607 1289 295609 627743 782423 381040001