Search a number
-
+
151425 = 3252673
BaseRepresentation
bin100100111110000001
321200201100
4210332001
514321200
63125013
71200321
oct447601
9250640
10151425
11a384a
1273769
1353c01
143d281
152ed00
hex24f81

151425 has 18 divisors (see below), whose sum is σ = 271622. Its totient is φ = 80640.

The previous prime is 151423. The next prime is 151429. The reversal of 151425 is 524151.

Adding to 151425 its reverse (524151), we get a palindrome (675576).

It can be divided in two parts, 151 and 425, that added together give a square (576 = 242).

It can be written as a sum of positive squares in 3 ways, for example, as 3969 + 147456 = 63^2 + 384^2 .

It is not a de Polignac number, because 151425 - 21 = 151423 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 151398 and 151407.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 151425.

It is not an unprimeable number, because it can be changed into a prime (151423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 112 + ... + 561.

2151425 is an apocalyptic number.

151425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

151425 is the 225-th octagonal number.

It is an amenable number.

151425 is a deficient number, since it is larger than the sum of its proper divisors (120197).

151425 is a wasteful number, since it uses less digits than its factorization.

151425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 681 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 151425 is about 389.1336531322. The cubic root of 151425 is about 53.3006527217.

The spelling of 151425 in words is "one hundred fifty-one thousand, four hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 673 2019 3365 6057 10095 16825 30285 50475 151425