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28754243166672 = 243366560748071
BaseRepresentation
bin1101000100110110111100…
…11100110010000111010000
310202210212201122102200022000
412202123132130302013100
512232102142222313142
6141053303354514000
76025265644125552
oct642333634620720
9122725648380260
1028754243166672
119186673711931
123284921a35900
13130768a1c554a
147159d9ca34d2
1534ce6d00314c
hex1a26de7321d0

28754243166672 has 40 divisors (see below), whose sum is σ = 82535327609280. Its totient is φ = 9584747722080.

The previous prime is 28754243166559. The next prime is 28754243166683. The reversal of 28754243166672 is 27666134245782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33280373604 + ... + 33280374467.

It is an arithmetic number, because the mean of its divisors is an integer number (2063383190232).

Almost surely, 228754243166672 is an apocalyptic number.

It is an amenable number.

28754243166672 is an abundant number, since it is smaller than the sum of its proper divisors (53781084442608).

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

28754243166672 is a wasteful number, since it uses less digits than its factorization.

28754243166672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66560748088 (or 66560748076 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 63.

The spelling of 28754243166672 in words is "twenty-eight trillion, seven hundred fifty-four billion, two hundred forty-three million, one hundred sixty-six thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 66560748071 133121496142 199682244213 266242992284 399364488426 532485984568 599046732639 798728976852 1064971969136 1198093465278 1597457953704 1797140197917 2396186930556 3194915907408 3594280395834 4792373861112 7188560791668 9584747722224 14377121583336 28754243166672