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154428 = 22317757
BaseRepresentation
bin100101101100111100
321211211120
4211230330
514420203
63150540
71212141
oct455474
9254746
10154428
11a602a
1275450
13553a1
14403c8
1530b53
hex25b3c

154428 has 24 divisors (see below), whose sum is σ = 382032. Its totient is φ = 48384.

The previous prime is 154423. The next prime is 154439. The reversal of 154428 is 824451.

It is a junction number, because it is equal to n+sod(n) for n = 154398 and 154407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154423) 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, 175 + ... + 582.

It is an arithmetic number, because the mean of its divisors is an integer number (15918).

2154428 is an apocalyptic number.

It is an amenable number.

154428 is an abundant number, since it is smaller than the sum of its proper divisors (227604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154428 is a wasteful number, since it uses less digits than its factorization.

154428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 779 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 154428 is about 392.9732815345. The cubic root of 154428 is about 53.6506945941.

Adding to 154428 its reverse (824451), we get a palindrome (978879).

The spelling of 154428 in words is "one hundred fifty-four thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 757 1514 2271 3028 4542 9084 12869 25738 38607 51476 77214 154428