Search a number
-
+
65143050 = 2352728863
BaseRepresentation
bin1111100010000…
…0000100001010
311112120121110120
43320200010022
5113134034200
610244124110
71420464300
oct370400412
9145517416
1065143050
1133853a35
1219996636
131065abab
14891a270
155abb9a0
hex3e2010a

65143050 has 72 divisors (see below), whose sum is σ = 187952256. Its totient is φ = 14888160.

The previous prime is 65143037. The next prime is 65143069. The reversal of 65143050 is 5034156.

It is a self number, because there is not a number n which added to its sum of digits gives 65143050.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2919 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (2610448).

Almost surely, 265143050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65143050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93976128).

65143050 is an abundant number, since it is smaller than the sum of its proper divisors (122809206).

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

65143050 is a wasteful number, since it uses less digits than its factorization.

65143050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892 (or 8880 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65143050 is about 8071.1244569762. The cubic root of 65143050 is about 402.3673160640.

The spelling of 65143050 in words is "sixty-five million, one hundred forty-three thousand, fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 49 50 70 75 98 105 147 150 175 210 245 294 350 490 525 735 1050 1225 1470 2450 3675 7350 8863 17726 26589 44315 53178 62041 88630 124082 132945 186123 221575 265890 310205 372246 434287 443150 620410 664725 868574 930615 1302861 1329450 1551025 1861230 2171435 2605722 3102050 4342870 4653075 6514305 9306150 10857175 13028610 21714350 32571525 65143050