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72080250 = 2353118737
BaseRepresentation
bin1000100101111…
…01101101111010
312000122001111220
410102331231322
5121423032000
611052532510
71533446334
oct422755572
9160561456
1072080250
1137761a60
1220181136
1311c19648
149804454
1564dc1a0
hex44bdb7a

72080250 has 64 divisors (see below), whose sum is σ = 196290432. Its totient is φ = 17472000.

The previous prime is 72080237. The next prime is 72080251. The reversal of 72080250 is 5208027.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72080250.

It is not an unprimeable number, because it can be changed into a prime (72080251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3882 + ... + 12618.

It is an arithmetic number, because the mean of its divisors is an integer number (3067038).

Almost surely, 272080250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72080250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98145216).

72080250 is an abundant number, since it is smaller than the sum of its proper divisors (124210182).

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

72080250 is a wasteful number, since it uses less digits than its factorization.

72080250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768 (or 8758 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 72080250 is about 8490.0088339177. The cubic root of 72080250 is about 416.1712690060.

Adding to 72080250 its reverse (5208027), we get a palindrome (77288277).

The spelling of 72080250 in words is "seventy-two million, eighty thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 11 15 22 25 30 33 50 55 66 75 110 125 150 165 250 275 330 375 550 750 825 1375 1650 2750 4125 8250 8737 17474 26211 43685 52422 87370 96107 131055 192214 218425 262110 288321 436850 480535 576642 655275 961070 1092125 1310550 1441605 2184250 2402675 2883210 3276375 4805350 6552750 7208025 12013375 14416050 24026750 36040125 72080250