Search a number
-
+
428461 = 1123541
BaseRepresentation
bin1101000100110101101
3210202201221
41220212231
5102202321
613103341
73433105
oct1504655
9722657
10428461
11272a00
12187b51
13120037
14b2205
1586e41
hex689ad

428461 has 6 divisors (see below), whose sum is σ = 471086. Its totient is φ = 389400.

The previous prime is 428429. The next prime is 428471. The reversal of 428461 is 164824.

It can be written as a sum of positive squares in only one way, i.e., 352836 + 75625 = 594^2 + 275^2 .

It is not a de Polignac number, because 428461 - 25 = 428429 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1650 + ... + 1891.

2428461 is an apocalyptic number.

It is an amenable number.

428461 is a deficient number, since it is larger than the sum of its proper divisors (42625).

428461 is a wasteful number, since it uses less digits than its factorization.

428461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563 (or 3552 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 428461 is about 654.5693240597. The cubic root of 428461 is about 75.3882679859.

The spelling of 428461 in words is "four hundred twenty-eight thousand, four hundred sixty-one".

Divisors: 1 11 121 3541 38951 428461