Search a number
-
+
145159200 = 25325220161
BaseRepresentation
bin10001010011011…
…11010000100000
3101010010211222200
420221233100200
5244130043300
622223133200
73411555444
oct1051572040
9333124880
10145159200
1174a3628a
1240744200
13240c5724
14153c8824
15cb25200
hex8a6f420

145159200 has 108 divisors (see below), whose sum is σ = 511893018. Its totient is φ = 38707200.

The previous prime is 145159159. The next prime is 145159211. The reversal of 145159200 is 2951541.

145159200 is a `hidden beast` number, since 1 + 451 + 5 + 9 + 200 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 116899344 + 28259856 = 10812^2 + 5316^2 .

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 2881 + ... + 17280.

Almost surely, 2145159200 is an apocalyptic number.

145159200 is a gapful number since it is divisible by the number (10) 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 145159200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255946509).

145159200 is an abundant number, since it is smaller than the sum of its proper divisors (366733818).

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

145159200 is a wasteful number, since it uses less digits than its factorization.

145159200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187 (or 20171 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 145159200 is about 12048.2031855377. The cubic root of 145159200 is about 525.5509861650.

The spelling of 145159200 in words is "one hundred forty-five million, one hundred fifty-nine thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 72 75 80 90 96 100 120 144 150 160 180 200 225 240 288 300 360 400 450 480 600 720 800 900 1200 1440 1800 2400 3600 7200 20161 40322 60483 80644 100805 120966 161288 181449 201610 241932 302415 322576 362898 403220 483864 504025 604830 645152 725796 806440 907245 967728 1008050 1209660 1451592 1512075 1612880 1814490 1935456 2016100 2419320 2903184 3024150 3225760 3628980 4032200 4536225 4838640 5806368 6048300 7257960 8064400 9072450 9677280 12096600 14515920 16128800 18144900 24193200 29031840 36289800 48386400 72579600 145159200