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72260460 = 2232529109127
BaseRepresentation
bin1000100111010…
…01101101101100
312000222012201100
410103221231230
5121444313320
611100443100
71535126616
oct423515554
9160865640
1072260460
1137875398
1220249490
1311c8068c
14984ddb6
156525790
hex44e9b6c

72260460 has 144 divisors (see below), whose sum is σ = 230630400. Its totient is φ = 18289152.

The previous prime is 72260459. The next prime is 72260483. The reversal of 72260460 is 6406227.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 568917 + ... + 569043.

It is an arithmetic number, because the mean of its divisors is an integer number (1601600).

Almost surely, 272260460 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 72260460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115315200).

72260460 is an abundant number, since it is smaller than the sum of its proper divisors (158369940).

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

72260460 is a wasteful number, since it uses less digits than its factorization.

72260460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 72260460 is about 8500.6152718494. The cubic root of 72260460 is about 416.5178078026.

Adding to 72260460 its reverse (6406227), we get a palindrome (78666687).

The spelling of 72260460 in words is "seventy-two million, two hundred sixty thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 29 30 36 45 58 60 87 90 109 116 127 145 174 180 218 254 261 290 327 348 381 435 436 508 522 545 580 635 654 762 870 981 1044 1090 1143 1270 1305 1308 1524 1635 1740 1905 1962 2180 2286 2540 2610 3161 3270 3683 3810 3924 4572 4905 5220 5715 6322 6540 7366 7620 9483 9810 11049 11430 12644 13843 14732 15805 18415 18966 19620 22098 22860 27686 28449 31610 33147 36830 37932 41529 44196 47415 55245 55372 56898 63220 66294 69215 73660 83058 94830 110490 113796 124587 132588 138430 142245 165735 166116 189660 207645 220980 249174 276860 284490 331470 401447 415290 498348 568980 622935 662940 802894 830580 1204341 1245870 1605788 2007235 2408682 2491740 3613023 4014470 4817364 6021705 7226046 8028940 12043410 14452092 18065115 24086820 36130230 72260460