Search a number
-
+
72001743210 = 2355283310459
BaseRepresentation
bin100001100001110100…
…0110110100101101010
320212211220222112100000
41003003220312211222
52134424421240320
653024355123430
75126161501455
oct1030350664552
9225756875300
1072001743210
112859911a401
1211b552a3576
136a360822a7
1436b080649c
151d16219c90
hex10c3a3696a

72001743210 has 96 divisors (see below), whose sum is σ = 194225129280. Its totient is φ = 19191852288.

The previous prime is 72001743167. The next prime is 72001743241. The reversal of 72001743210 is 1234710027.

It is a happy number.

72001743210 is a `hidden beast` number, since 7 + 200 + 17 + 432 + 10 = 666.

It is a super-3 number, since 3×720017432103 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 6878961 + ... + 6889419.

It is an arithmetic number, because the mean of its divisors is an integer number (2023178430).

Almost surely, 272001743210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72001743210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97112564640).

72001743210 is an abundant number, since it is smaller than the sum of its proper divisors (122223386070).

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

72001743210 is a wasteful number, since it uses less digits than its factorization.

72001743210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13314 (or 13302 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The spelling of 72001743210 in words is "seventy-two billion, one million, seven hundred forty-three thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 810 1215 2430 2833 5666 8499 10459 14165 16998 20918 25497 28330 31377 42495 50994 52295 62754 76491 84990 94131 104590 127485 152982 156885 188262 229473 254970 282393 313770 382455 458946 470655 564786 688419 764910 847179 941310 1147365 1376838 1411965 1694358 2294730 2541537 2823930 3442095 4235895 5083074 6884190 8471790 12707685 25415370 29630347 59260694 88891041 148151735 177782082 266673123 296303470 444455205 533346246 800019369 888910410 1333365615 1600038738 2400058107 2666731230 4000096845 4800116214 7200174321 8000193690 12000290535 14400348642 24000581070 36000871605 72001743210