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151428 = 22312619
BaseRepresentation
bin100100111110000100
321200201110
4210332010
514321203
63125020
71200324
oct447604
9250643
10151428
11a3852
1273770
1353c04
143d284
152ed03
hex24f84

151428 has 12 divisors (see below), whose sum is σ = 353360. Its totient is φ = 50472.

The previous prime is 151423. The next prime is 151429. The reversal of 151428 is 824151.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 151428.

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

151428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6298 + ... + 6321.

2151428 is an apocalyptic number.

It is an amenable number.

151428 is an abundant number, since it is smaller than the sum of its proper divisors (201932).

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

151428 is a wasteful number, since it uses less digits than its factorization.

151428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12626 (or 12624 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 151428 is about 389.1375078298. The cubic root of 151428 is about 53.3010047131.

Adding to 151428 its reverse (824151), we get a palindrome (975579).

The spelling of 151428 in words is "one hundred fifty-one thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 12619 25238 37857 50476 75714 151428