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28473507468 = 22327176646477
BaseRepresentation
bin11010100001001001…
…110011111010001100
32201111100221001021200
4122201021303322030
5431303204214333
621025222025500
72025412551210
oct324111637214
981440831250
1028473507468
111109160965a
125627878290
1328ba058493
14154180a940
15b19ae9c13
hex6a1273e8c

28473507468 has 72 divisors (see below), whose sum is σ = 87095447712. Its totient is φ = 7656740352.

The previous prime is 28473507467. The next prime is 28473507473. The reversal of 28473507468 is 86470537482.

28473507468 is a `hidden beast` number, since 2 + 8 + 4 + 73 + 507 + 4 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (28473507467) 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 23 ways as a sum of consecutive naturals, for example, 3318955 + ... + 3327522.

It is an arithmetic number, because the mean of its divisors is an integer number (1209658996).

Almost surely, 228473507468 is an apocalyptic number.

28473507468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28473507468 is an abundant number, since it is smaller than the sum of its proper divisors (58621940244).

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

28473507468 is a wasteful number, since it uses less digits than its factorization.

28473507468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6646511 (or 6646506 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 28473507468 in words is "twenty-eight billion, four hundred seventy-three million, five hundred seven thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 21 28 34 36 42 51 63 68 84 102 119 126 153 204 238 252 306 357 476 612 714 1071 1428 2142 4284 6646477 13292954 19939431 26585908 39878862 46525339 59818293 79757724 93050678 112990109 119636586 139576017 186101356 225980218 239273172 279152034 338970327 418728051 451960436 558304068 677940654 790930763 837456102 1016910981 1355881308 1581861526 1674912204 2033821962 2372792289 3163723052 4067643924 4745584578 7118376867 9491169156 14236753734 28473507468