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28410855018 = 23713232578803
BaseRepresentation
bin11010011101011010…
…110011111001101010
32201100000000222021120
4122131122303321222
5431141134330033
621015103120110
72024022166050
oct323532637152
981300028246
1028410855018
111105a206977
12560a8a3036
1328aa090120
14153737c1d0
15b143711b3
hex69d6b3e6a

28410855018 has 128 divisors (see below), whose sum is σ = 73267310592. Its totient is φ = 7138492416.

The previous prime is 28410854999. The next prime is 28410855043. The reversal of 28410855018 is 81055801482.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3223005 + ... + 3231807.

It is an arithmetic number, because the mean of its divisors is an integer number (572400864).

Almost surely, 228410855018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28410855018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36633655296).

28410855018 is an abundant number, since it is smaller than the sum of its proper divisors (44856455574).

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

28410855018 is a wasteful number, since it uses less digits than its factorization.

28410855018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9108.

The product of its (nonzero) digits is 102400, while the sum is 42.

The spelling of 28410855018 in words is "twenty-eight billion, four hundred ten million, eight hundred fifty-five thousand, eighteen".

Divisors: 1 2 3 6 7 13 14 21 23 26 39 42 46 69 78 91 138 161 182 257 273 299 322 483 514 546 598 771 897 966 1542 1794 1799 2093 3341 3598 4186 5397 5911 6279 6682 8803 10023 10794 11822 12558 17606 17733 20046 23387 26409 35466 41377 46774 52818 61621 70161 76843 82754 114439 123242 124131 140322 153686 184863 202469 228878 230529 248262 343317 369726 404938 461058 537901 607407 686634 801073 1075802 1214814 1417283 1602146 1613703 2262371 2403219 2632097 2834566 3227406 4251849 4524742 4806438 5264194 6787113 7896291 8503698 13574226 15792582 15836597 18424679 29410823 31673194 36849358 47509791 52034533 55274037 58821646 88232469 95019582 104069066 110548074 156103599 176464938 205875761 312207198 364241731 411751522 617627283 676448929 728483462 1092725193 1235254566 1352897858 2029346787 2185450386 4058693574 4735142503 9470285006 14205427509 28410855018