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72698112 = 2832139227
BaseRepresentation
bin1000101010101…
…00100100000000
312001210110001200
410111110210000
5122102314422
611114101200
71541631564
oct425244400
9161713050
1072698112
1138044193
122041a800
13120a4946
1499256a4
1565b02ac
hex4554900

72698112 has 108 divisors (see below), whose sum is σ = 212044560. Its totient is φ = 23952384.

The previous prime is 72698071. The next prime is 72698113. The reversal of 72698112 is 21189627.

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 (72698113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320143 + ... + 320369.

Almost surely, 272698112 is an apocalyptic number.

72698112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72698112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106022280).

72698112 is an abundant number, since it is smaller than the sum of its proper divisors (139346448).

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

72698112 is a wasteful number, since it uses less digits than its factorization.

72698112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 371 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 72698112 is about 8526.3187836252. The cubic root of 72698112 is about 417.3570084140.

The spelling of 72698112 in words is "seventy-two million, six hundred ninety-eight thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 139 144 192 227 256 278 288 384 417 454 556 576 681 768 834 908 1112 1152 1251 1362 1668 1816 2043 2224 2304 2502 2724 3336 3632 4086 4448 5004 5448 6672 7264 8172 8896 10008 10896 13344 14528 16344 17792 20016 21792 26688 29056 31553 32688 35584 40032 43584 53376 58112 63106 65376 80064 87168 94659 106752 126212 130752 160128 174336 189318 252424 261504 283977 320256 378636 504848 523008 567954 757272 1009696 1135908 1514544 2019392 2271816 3029088 4038784 4543632 6058176 8077568 9087264 12116352 18174528 24232704 36349056 72698112