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245132250 = 23531143691
BaseRepresentation
bin11101001110001…
…10101111011010
3122002021000020020
432213012233122
51000223213000
640154011310
76034406166
oct1647065732
9562230206
10245132250
11116409540
126a116b36
133ba29b8c
14247adca6
15167c1ba0
hexe9c6bda

245132250 has 128 divisors (see below), whose sum is σ = 683983872. Its totient is φ = 57960000.

The previous prime is 245132201. The next prime is 245132263. The reversal of 245132250 is 52231542.

It is a self number, because there is not a number n which added to its sum of digits gives 245132250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 354405 + ... + 355095.

It is an arithmetic number, because the mean of its divisors is an integer number (5343624).

Almost surely, 2245132250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245132250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341991936).

245132250 is an abundant number, since it is smaller than the sum of its proper divisors (438851622).

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

245132250 is a wasteful number, since it uses less digits than its factorization.

245132250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 245132250 is about 15656.6998438368. The cubic root of 245132250 is about 625.8450435938.

Adding to 245132250 its reverse (52231542), we get a palindrome (297363792).

The spelling of 245132250 in words is "two hundred forty-five million, one hundred thirty-two thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 11 15 22 25 30 33 43 50 55 66 75 86 110 125 129 150 165 215 250 258 275 330 375 430 473 550 645 691 750 825 946 1075 1290 1375 1382 1419 1650 2073 2150 2365 2750 2838 3225 3455 4125 4146 4730 5375 6450 6910 7095 7601 8250 10365 10750 11825 14190 15202 16125 17275 20730 22803 23650 29713 32250 34550 35475 38005 45606 51825 59125 59426 70950 76010 86375 89139 103650 114015 118250 148565 172750 177375 178278 190025 228030 259125 297130 326843 354750 380050 445695 518250 570075 653686 742825 891390 950125 980529 1140150 1485650 1634215 1900250 1961058 2228475 2850375 3268430 3714125 4456950 4902645 5700750 7428250 8171075 9805290 11142375 16342150 22284750 24513225 40855375 49026450 81710750 122566125 245132250