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144923450 = 25271923137
BaseRepresentation
bin10001010001101…
…01101100111010
3101002200212121012
420220311230322
5244100022300
622214113522
73406554230
oct1050655472
9332625535
10144923450
1174895151
124064b8a2
1324042329
1415366950
15caca435
hex8a35b3a

144923450 has 144 divisors (see below), whose sum is σ = 344692224. Its totient is φ = 44323200.

The previous prime is 144923447. The next prime is 144923461. The reversal of 144923450 is 54329441.

144923450 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3916832 + ... + 3916868.

It is an arithmetic number, because the mean of its divisors is an integer number (2393696).

Almost surely, 2144923450 is an apocalyptic number.

144923450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144923450 is an abundant number, since it is smaller than the sum of its proper divisors (199768774).

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

144923450 is a wasteful number, since it uses less digits than its factorization.

144923450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 144923450 is about 12038.4155934242. The cubic root of 144923450 is about 525.2663199059.

The spelling of 144923450 in words is "one hundred forty-four million, nine hundred twenty-three thousand, four hundred fifty".

Divisors: 1 2 5 7 10 14 19 25 31 35 37 38 50 62 70 74 95 133 155 175 185 190 217 259 266 310 350 361 370 434 475 518 589 665 703 722 775 925 950 1085 1147 1178 1295 1330 1406 1550 1805 1850 2170 2294 2527 2590 2945 3325 3515 3610 4123 4921 5054 5425 5735 5890 6475 6650 7030 8029 8246 9025 9842 10850 11191 11470 12635 12950 13357 14725 16058 17575 18050 20615 21793 22382 24605 25270 26714 28675 29450 35150 40145 41230 43586 49210 55955 57350 63175 66785 78337 80290 93499 103075 108965 111910 123025 126350 133570 152551 156674 186998 200725 206150 217930 246050 279775 305102 333925 391685 401450 414067 467495 544825 559550 667850 762755 783370 828134 934990 1089650 1525510 1958425 2070335 2337475 2898469 3813775 3916850 4140670 4674950 5796938 7627550 10351675 14492345 20703350 28984690 72461725 144923450