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28064025107070 = 23518128118392629
BaseRepresentation
bin1100110000110001010100…
…01111110101101001111110
310200100220011011101100010220
412120120222033311221332
512134300110411411240
6135404233554242210
75624362463331651
oct630305217655176
9120326134340126
1028064025107070
118a3a9825aa8a7
123192bb5286366
131287570507624
146d043db9b898
1533a022ad35d0
hex19862a3f5a7e

28064025107070 has 64 divisors (see below), whose sum is σ = 67966800632640. Its totient is φ = 7415907609600.

The previous prime is 28064025107051. The next prime is 28064025107113. The reversal of 28064025107070 is 7070152046082.

It is a congruent number.

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, 7670485 + ... + 10722144.

It is an arithmetic number, because the mean of its divisors is an integer number (1061981259885).

Almost surely, 228064025107070 is an apocalyptic number.

28064025107070 is an abundant number, since it is smaller than the sum of its proper divisors (39902775525570).

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

28064025107070 is a wasteful number, since it uses less digits than its factorization.

28064025107070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18393101.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 28064025107070 in words is "twenty-eight trillion, sixty-four billion, twenty-five million, one hundred seven thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 181 281 362 543 562 843 905 1086 1405 1686 1810 2715 2810 4215 5430 8430 50861 101722 152583 254305 305166 508610 762915 1525830 18392629 36785258 55177887 91963145 110355774 183926290 275889435 551778870 3329065849 5168328749 6658131698 9987197547 10336657498 15504986247 16645329245 19974395094 25841643745 31009972494 33290658490 49935987735 51683287490 77524931235 99871975470 155049862470 935467503569 1870935007138 2806402510707 4677337517845 5612805021414 9354675035690 14032012553535 28064025107070