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28885858601444 = 221367349211311243
BaseRepresentation
bin1101001000101100000110…
…10101110100100111100100
310210021110110011002111211022
412210112003111310213210
512241231214300221234
6141233551422230312
76040635334636355
oct644260325644744
9123243404074738
1028885858601444
119227473145019
1232a6333725398
131316c03978330
1471c123b1dd2c
153515c2ab3e2e
hex1a45835749e4

28885858601444 has 96 divisors (see below), whose sum is σ = 55440718838400. Its totient is φ = 13087958704128.

The previous prime is 28885858601443. The next prime is 28885858601449. The reversal of 28885858601444 is 44410685858882.

It is not an unprimeable number, because it can be changed into a prime (28885858601441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2569224887 + ... + 2569236129.

It is an arithmetic number, because the mean of its divisors is an integer number (577507487900).

Almost surely, 228885858601444 is an apocalyptic number.

It is an amenable number.

28885858601444 is a deficient number, since it is larger than the sum of its proper divisors (26554860236956).

28885858601444 is a wasteful number, since it uses less digits than its factorization.

28885858601444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13789 (or 13787 counting only the distinct ones).

The product of its (nonzero) digits is 629145600, while the sum is 71.

The spelling of 28885858601444 in words is "twenty-eight trillion, eight hundred eighty-five billion, eight hundred fifty-eight million, six hundred one thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 67 134 268 349 698 871 1396 1742 2113 3484 4226 4537 8452 9074 11243 18148 22486 23383 27469 44972 46766 54938 93532 109876 141571 146159 283142 292318 303979 566284 584636 607958 737437 753281 1215916 1474874 1506562 1840423 2949748 3013124 3680846 3923807 7361692 7847614 9586681 9792653 15695228 19173362 19585306 23756459 38346724 39170612 47512918 49408279 51009491 95025836 98816558 102018982 197633116 204037964 262895069 308833967 525790138 617667934 642307627 1051580276 1235335868 1284615254 1591682753 2569230508 3183365506 3417635897 6366731012 6835271794 8291004191 13670543588 16582008382 20691875789 33164016764 41383751578 82767503156 107783054483 215566108966 431132217932 555497280797 1110994561594 2221989123188 7221464650361 14442929300722 28885858601444