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128453434160 = 24523103677783
BaseRepresentation
bin111011110100001101…
…0111101101100110000
3110021120010210120010112
41313220122331230300
54101033034343120
6135002150520452
712165124114022
oct1675032755460
9407503716115
10128453434160
114a527684347
1220a8a966128
13c16165a30c
146307d24012
15351c1bbbc5
hex1de86bdb30

128453434160 has 80 divisors (see below), whose sum is σ = 314665288704. Its totient is φ = 48670169856.

The previous prime is 128453434139. The next prime is 128453434217. The reversal of 128453434160 is 61434354821.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149372 + ... + 528411.

Almost surely, 2128453434160 is an apocalyptic number.

128453434160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128453434160 is an abundant number, since it is smaller than the sum of its proper divisors (186211854544).

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

128453434160 is a wasteful number, since it uses less digits than its factorization.

128453434160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677922 (or 677916 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

Adding to 128453434160 its reverse (61434354821), we get a palindrome (189887788981).

The spelling of 128453434160 in words is "one hundred twenty-eight billion, four hundred fifty-three million, four hundred thirty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 103 115 184 206 230 368 412 460 515 824 920 1030 1648 1840 2060 2369 4120 4738 8240 9476 11845 18952 23690 37904 47380 94760 189520 677783 1355566 2711132 3388915 5422264 6777830 10844528 13555660 15589009 27111320 31178018 54222640 62356036 69811649 77945045 124712072 139623298 155890090 249424144 279246596 311780180 349058245 558493192 623560360 698116490 1116986384 1247120720 1396232980 1605667927 2792465960 3211335854 5584931920 6422671708 8028339635 12845343416 16056679270 25690686832 32113358540 64226717080 128453434160