Search a number
-
+
230155140 = 22354193559
BaseRepresentation
bin11011011011111…
…10001110000100
3121001002002111110
431231332032010
5432404431030
634501005020
75463200145
oct1555761604
9531062443
10230155140
11108a09a66
12650b3770
13388b4a97
14227d1acc
15153141b0
hexdb7e384

230155140 has 48 divisors (see below), whose sum is σ = 660159360. Its totient is φ = 59877120.

The previous prime is 230155103. The next prime is 230155169. The reversal of 230155140 is 41551032.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44320 + ... + 49239.

It is an arithmetic number, because the mean of its divisors is an integer number (13753320).

Almost surely, 2230155140 is an apocalyptic number.

230155140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230155140 is an abundant number, since it is smaller than the sum of its proper divisors (430004220).

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

230155140 is a wasteful number, since it uses less digits than its factorization.

230155140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93612 (or 93610 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 230155140 is about 15170.8648402126. The cubic root of 230155140 is about 612.8302947129.

The spelling of 230155140 in words is "two hundred thirty million, one hundred fifty-five thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 93559 187118 280677 374236 467795 561354 935590 1122708 1403385 1871180 2806770 3835919 5613540 7671838 11507757 15343676 19179595 23015514 38359190 46031028 57538785 76718380 115077570 230155140