Search a number
-
+
438103457 = 11284314009
BaseRepresentation
bin11010000111001…
…110110110100001
31010112100221221222
4122013032312201
51344123302312
6111250024425
713566550361
oct3207166641
91115327858
10438103457
11205330680
12102878115
136c9c2b1c
14422829a1
15286dd672
hex1a1ceda1

438103457 has 8 divisors (see below), whose sum is σ = 478133280. Its totient is φ = 398107360.

The previous prime is 438103453. The next prime is 438103487. The reversal of 438103457 is 754301834.

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 438103457 - 22 = 438103453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438103451) 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, 24269 + ... + 38277.

It is an arithmetic number, because the mean of its divisors is an integer number (59766660).

Almost surely, 2438103457 is an apocalyptic number.

It is an amenable number.

438103457 is a deficient number, since it is larger than the sum of its proper divisors (40029823).

438103457 is a wasteful number, since it uses less digits than its factorization.

438103457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16863.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 438103457 is about 20930.9210738563. The cubic root of 438103457 is about 759.4961208733.

The spelling of 438103457 in words is "four hundred thirty-eight million, one hundred three thousand, four hundred fifty-seven".

Divisors: 1 11 2843 14009 31273 154099 39827587 438103457