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28258074112 = 291011912861
BaseRepresentation
bin11010010100010011…
…111111111000000000
32200221100112220021111
4122110103333320000
5430333031332422
620552004333104
72020155444502
oct322423777000
980840486244
1028258074112
1110a90a45364
1255876a4194
132884529518
141520d6bd72
15b05c42a77
hex6944ffe00

28258074112 has 80 divisors (see below), whose sum is σ = 57338544384. Its totient is φ = 13911040000.

The previous prime is 28258074071. The next prime is 28258074113. The reversal of 28258074112 is 21147085282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28258074113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9875562 + ... + 9878422.

Almost surely, 228258074112 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 28258074112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28669272192).

28258074112 is an abundant number, since it is smaller than the sum of its proper divisors (29080470272).

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

28258074112 is a wasteful number, since it uses less digits than its factorization.

28258074112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The spelling of 28258074112 in words is "twenty-eight billion, two hundred fifty-eight million, seventy-four thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 64 101 128 191 202 256 382 404 512 764 808 1528 1616 2861 3056 3232 5722 6112 6464 11444 12224 12928 19291 22888 24448 25856 38582 45776 48896 51712 77164 91552 97792 154328 183104 288961 308656 366208 546451 577922 617312 732416 1092902 1155844 1234624 1464832 2185804 2311688 2469248 4371608 4623376 4938496 8743216 9246752 9876992 17486432 18493504 34972864 36987008 55191551 69945728 73974016 110383102 139891456 147948032 220766204 279782912 441532408 883064816 1766129632 3532259264 7064518528 14129037056 28258074112