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72068752 = 24723101277
BaseRepresentation
bin1000100101110…
…10111010010000
312000121110202001
410102322322100
5121422200002
611052403344
71533400660
oct422727220
9160543661
1072068752
1137754358
1220176554
1311c14342
1498001a0
1564d8a87
hex44bae90

72068752 has 80 divisors (see below), whose sum is σ = 168774912. Its totient is φ = 29145600.

The previous prime is 72068747. The next prime is 72068753. The reversal of 72068752 is 25786027.

It is not an unprimeable number, because it can be changed into a prime (72068753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260038 + ... + 260314.

Almost surely, 272068752 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 72068752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84387456).

72068752 is an abundant number, since it is smaller than the sum of its proper divisors (96706160).

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

72068752 is a wasteful number, since it uses less digits than its factorization.

72068752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 72068752 is about 8489.3316580282. The cubic root of 72068752 is about 416.1491390804.

The spelling of 72068752 in words is "seventy-two million, sixty-eight thousand, seven hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 23 28 46 56 92 101 112 161 184 202 277 322 368 404 554 644 707 808 1108 1288 1414 1616 1939 2216 2323 2576 2828 3878 4432 4646 5656 6371 7756 9292 11312 12742 15512 16261 18584 25484 27977 31024 32522 37168 44597 50968 55954 65044 89194 101936 111908 130088 178388 195839 223816 260176 356776 391678 447632 643471 713552 783356 1286942 1566712 2573884 3133424 4504297 5147768 9008594 10295536 18017188 36034376 72068752