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28810625010 = 2352386348383
BaseRepresentation
bin11010110101001111…
…110011111111110010
32202100212021101121120
4122311033303333302
5433001010000020
621122503403110
72036645162166
oct326517637762
982325241546
1028810625010
1111244934aa2
125700753496
132941b50b0b
1415744c2ca6
15b394db740
hex6b53f3ff2

28810625010 has 64 divisors (see below), whose sum is σ = 72236924928. Its totient is φ = 7340129984.

The previous prime is 28810625003. The next prime is 28810625023. The reversal of 28810625010 is 1052601882.

It is a super-2 number, since 2×288106250102 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 571279 + ... + 619661.

It is an arithmetic number, because the mean of its divisors is an integer number (1128701952).

Almost surely, 228810625010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28810625010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36118462464).

28810625010 is an abundant number, since it is smaller than the sum of its proper divisors (43426299918).

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

28810625010 is a wasteful number, since it uses less digits than its factorization.

28810625010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49279.

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 28810625010 in words is "twenty-eight billion, eight hundred ten million, six hundred twenty-five thousand, ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 863 1726 2589 4315 5178 8630 12945 19849 25890 39698 48383 59547 96766 99245 119094 145149 198490 241915 290298 297735 483830 595470 725745 1112809 1451490 2225618 3338427 5564045 6676854 11128090 16692135 33384270 41754529 83509058 125263587 208772645 250527174 417545290 626317935 960354167 1252635870 1920708334 2881062501 4801770835 5762125002 9603541670 14405312505 28810625010