Search a number
-
+
72070960 = 24513232131
BaseRepresentation
bin1000100101110…
…11011100110000
312000121120202211
410102323130300
5121422232320
611052421504
71533410263
oct422733460
9160546684
1072070960
1137755a85
1220177894
1311c15350
149800cda
1564d955a
hex44bb730

72070960 has 120 divisors (see below), whose sum is σ = 190081584. Its totient is φ = 25259520.

The previous prime is 72070913. The next prime is 72070963. The reversal of 72070960 is 6907027.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72070963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 550095 + ... + 550225.

Almost surely, 272070960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72070960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95040792).

72070960 is an abundant number, since it is smaller than the sum of its proper divisors (118010624).

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

72070960 is a wasteful number, since it uses less digits than its factorization.

72070960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 72070960 is about 8489.4617026052. The cubic root of 72070960 is about 416.1533889478.

Adding to 72070960 its reverse (6907027), we get a palindrome (78977987).

The spelling of 72070960 in words is "seventy-two million, seventy thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 23 26 40 46 52 65 80 92 104 115 130 131 184 208 230 260 262 299 368 460 520 524 529 598 655 920 1040 1048 1058 1196 1310 1495 1703 1840 2096 2116 2392 2620 2645 2990 3013 3406 4232 4784 5240 5290 5980 6026 6812 6877 8464 8515 10480 10580 11960 12052 13624 13754 15065 17030 21160 23920 24104 27248 27508 30130 34060 34385 39169 42320 48208 55016 60260 68120 68770 69299 78338 110032 120520 136240 137540 138598 156676 195845 241040 275080 277196 313352 346495 391690 550160 554392 626704 692990 783380 900887 1108784 1385980 1566760 1801774 2771960 3133520 3603548 4504435 5543920 7207096 9008870 14414192 18017740 36035480 72070960