Search a number
-
+
128355324 = 22312798363
BaseRepresentation
bin1111010011010…
…00101111111100
322221112010101220
413221220233330
5230324332244
620423033340
73116000526
oct751505774
9287463356
10128355324
11664a9289
1236b9b850
1320790cc6
1413092a16
15b406319
hex7a68bfc

128355324 has 24 divisors (see below), whose sum is σ = 299765760. Its totient is φ = 42746544.

The previous prime is 128355319. The next prime is 128355349. The reversal of 128355324 is 423553821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11167 + ... + 19529.

It is an arithmetic number, because the mean of its divisors is an integer number (12490240).

Almost surely, 2128355324 is an apocalyptic number.

It is an amenable number.

128355324 is an abundant number, since it is smaller than the sum of its proper divisors (171410436).

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

128355324 is a wasteful number, since it uses less digits than its factorization.

128355324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9649 (or 9647 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 128355324 is about 11329.4008667714. The cubic root of 128355324 is about 504.4343226414.

The spelling of 128355324 in words is "one hundred twenty-eight million, three hundred fifty-five thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 12 1279 2558 3837 5116 7674 8363 15348 16726 25089 33452 50178 100356 10696277 21392554 32088831 42785108 64177662 128355324