Search a number
-
+
2055401 = 19108179
BaseRepresentation
bin111110101110011101001
310212102110222
413311303221
51011233101
6112015425
723320265
oct7656351
93772428
102055401
111184287
12831575
1356c71a
143b70a5
152a901b
hex1f5ce9

2055401 has 4 divisors (see below), whose sum is σ = 2163600. Its totient is φ = 1947204.

The previous prime is 2055397. The next prime is 2055409. The reversal of 2055401 is 1045502.

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.

It is a cyclic number.

It is not a de Polignac number, because 2055401 - 22 = 2055397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2055401.

It is not an unprimeable number, because it can be changed into a prime (2055409) 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, 54071 + ... + 54108.

It is an arithmetic number, because the mean of its divisors is an integer number (540900).

22055401 is an apocalyptic number.

It is an amenable number.

2055401 is a deficient number, since it is larger than the sum of its proper divisors (108199).

2055401 is a wasteful number, since it uses less digits than its factorization.

2055401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108198.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2055401 is about 1433.6669766721. Note that the first 3 decimals coincide. The cubic root of 2055401 is about 127.1448736312.

The spelling of 2055401 in words is "two million, fifty-five thousand, four hundred one".

Divisors: 1 19 108179 2055401