Search a number
-
+
72258024 = 233172931197
BaseRepresentation
bin1000100111010…
…01000111101000
312000222002101010
410103221013220
5121444224044
611100423520
71535116536
oct423510750
9160862333
1072258024
1137873583
1220247ba0
1311c7c537
14984d156
156524bb9
hex44e91e8

72258024 has 128 divisors (see below), whose sum is σ = 205286400. Its totient is φ = 21073920.

The previous prime is 72258023. The next prime is 72258029. The reversal of 72258024 is 42085227.

It is a junction number, because it is equal to n+sod(n) for n = 72257982 and 72258000.

It is not an unprimeable number, because it can be changed into a prime (72258023) 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, 366694 + ... + 366890.

It is an arithmetic number, because the mean of its divisors is an integer number (1603800).

Almost surely, 272258024 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 72258024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102643200).

72258024 is an abundant number, since it is smaller than the sum of its proper divisors (133028376).

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

72258024 is a wasteful number, since it uses less digits than its factorization.

72258024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 72258024 is about 8500.4719868958. The cubic root of 72258024 is about 416.5131272863.

The spelling of 72258024 in words is "seventy-two million, two hundred fifty-eight thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 17 24 29 31 34 51 58 62 68 87 93 102 116 124 136 174 186 197 204 232 248 348 372 394 408 493 527 591 696 744 788 899 986 1054 1182 1479 1576 1581 1798 1972 2108 2364 2697 2958 3162 3349 3596 3944 4216 4728 5394 5713 5916 6107 6324 6698 7192 10047 10788 11426 11832 12214 12648 13396 15283 17139 18321 20094 21576 22852 24428 26792 30566 34278 36642 40188 45704 45849 48856 61132 68556 73284 80376 91698 97121 103819 122264 137112 146568 177103 183396 194242 207638 291363 311457 354206 366792 388484 415276 531309 582726 622914 708412 776968 830552 1062618 1165452 1245828 1416824 2125236 2330904 2491656 3010751 4250472 6021502 9032253 12043004 18064506 24086008 36129012 72258024