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72528048 = 2434191293
BaseRepresentation
bin1000101001010…
…11000010110000
312001110210210000
410110223002300
5122031344143
611110310000
71540323015
oct424530260
9161423700
1072528048
1137a3843a
1220358300
1312045408
1498bd70c
156579bd3
hex452b0b0

72528048 has 100 divisors (see below), whose sum is σ = 211736448. Its totient is φ = 23967360.

The previous prime is 72528041. The next prime is 72528059. The reversal of 72528048 is 84082527.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (72528041) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 247390 + ... + 247682.

Almost surely, 272528048 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 72528048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105868224).

72528048 is an abundant number, since it is smaller than the sum of its proper divisors (139208400).

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

72528048 is a wasteful number, since it uses less digits than its factorization.

72528048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 72528048 is about 8516.3400589690. The cubic root of 72528048 is about 417.0313107280.

The spelling of 72528048 in words is "seventy-two million, five hundred twenty-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 191 216 293 324 382 432 573 586 648 764 879 1146 1172 1296 1528 1719 1758 2292 2344 2637 3056 3438 3516 4584 4688 5157 5274 6876 7032 7911 9168 10314 10548 13752 14064 15471 15822 20628 21096 23733 27504 30942 31644 41256 42192 47466 55963 61884 63288 82512 94932 111926 123768 126576 167889 189864 223852 247536 335778 379728 447704 503667 671556 895408 1007334 1343112 1511001 2014668 2686224 3022002 4029336 4533003 6044004 8058672 9066006 12088008 18132012 24176016 36264024 72528048