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151928 = 2372713
BaseRepresentation
bin100101000101111000
321201101222
4211011320
514330203
63131212
71201640
oct450570
9251358
10151928
11a4167
1273b08
13541ca
143d520
1530038
hex25178

151928 has 16 divisors (see below), whose sum is σ = 325680. Its totient is φ = 65088.

The previous prime is 151909. The next prime is 151937. The reversal of 151928 is 829151.

It is a happy number.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 151897 and 151906.

It is a congruent number.

It is an unprimeable number.

151928 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, 1301 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (20355).

2151928 is an apocalyptic number.

It is an amenable number.

151928 is an abundant number, since it is smaller than the sum of its proper divisors (173752).

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

151928 is a wasteful number, since it uses less digits than its factorization.

151928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726 (or 2722 counting only the distinct ones).

The product of its digits is 720, while the sum is 26.

The square root of 151928 is about 389.7794248033. The cubic root of 151928 is about 53.3596051121.

It can be divided in two parts, 15 and 1928, that multiplied together give a triangular number (28920 = T240).

The spelling of 151928 in words is "one hundred fifty-one thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 56 2713 5426 10852 18991 21704 37982 75964 151928