Search a number
-
+
145382688 = 2534115099
BaseRepresentation
bin10001010101001…
…01110100100000
3101010120012120000
420222211310200
5244204221223
622232020000
73413506143
oct1052456440
9333505500
10145382688
1175079190
1240831600
1324173379
141544605a
15cb6b543
hex8aa5d20

145382688 has 120 divisors (see below), whose sum is σ = 466527600. Its totient is φ = 44046720.

The previous prime is 145382687. The next prime is 145382689. The reversal of 145382688 is 886283541.

145382688 is a `hidden beast` number, since 14 + 538 + 26 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (145382687) and next prime (145382689).

It is a super-2 number, since 2×1453826882 = 42272251940210688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145382683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25963 + ... + 31061.

It is an arithmetic number, because the mean of its divisors is an integer number (3887730).

Almost surely, 2145382688 is an apocalyptic number.

145382688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145382688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233263800).

145382688 is an abundant number, since it is smaller than the sum of its proper divisors (321144912).

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

145382688 is a wasteful number, since it uses less digits than its factorization.

145382688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132 (or 5115 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 145382688 is about 12057.4743624028. The cubic root of 145382688 is about 525.8205617126.

It can be divided in two parts, 145382 and 688, that added together give a triangular number (146070 = T540).

The spelling of 145382688 in words is "one hundred forty-five million, three hundred eighty-two thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 66 72 81 88 96 99 108 132 144 162 176 198 216 264 288 297 324 352 396 432 528 594 648 792 864 891 1056 1188 1296 1584 1782 2376 2592 3168 3564 4752 5099 7128 9504 10198 14256 15297 20396 28512 30594 40792 45891 56089 61188 81584 91782 112178 122376 137673 163168 168267 183564 224356 244752 275346 336534 367128 413019 448712 489504 504801 550692 673068 734256 826038 897424 1009602 1101384 1346136 1468512 1514403 1652076 1794848 2019204 2202768 2692272 3028806 3304152 4038408 4405536 4543209 5384544 6057612 6608304 8076816 9086418 12115224 13216608 16153632 18172836 24230448 36345672 48460896 72691344 145382688