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245639263131080 = 235713208732335081
BaseRepresentation
bin110111110110100001011001…
…000001011001010111001000
31012012201212212121000222011022
4313312201121001121113020
5224144023202330143310
62230233041501452012
7102511564634163440
oct6766413101312710
91165655777028138
10245639263131080
11712a5032264a35
1223672650271008
13a70a8b5a7c930
14449300a4c3120
151d5e9932caa55
hexdf68590595c8

245639263131080 has 128 divisors (see below), whose sum is σ = 680557764257280. Its totient is φ = 77703525365760.

The previous prime is 245639263130909. The next prime is 245639263131127. The reversal of 245639263131080 is 80131362936542.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8570861 + ... + 23764220.

It is an arithmetic number, because the mean of its divisors is an integer number (5316857533260).

Almost surely, 2245639263131080 is an apocalyptic number.

245639263131080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245639263131080 is an abundant number, since it is smaller than the sum of its proper divisors (434918501126200).

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

245639263131080 is a wasteful number, since it uses less digits than its factorization.

245639263131080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32337199 (or 32337195 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 245639263131080 in words is "two hundred forty-five trillion, six hundred thirty-nine billion, two hundred sixty-three million, one hundred thirty-one thousand, eighty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 2087 3640 4174 8348 10435 14609 16696 20870 27131 29218 41740 54262 58436 73045 83480 108524 116872 135655 146090 189917 217048 271310 292180 379834 542620 584360 759668 949585 1085240 1519336 1899170 3798340 7596680 32335081 64670162 129340324 161675405 226345567 258680648 323350810 420356053 452691134 646701620 840712106 905382268 1131727835 1293403240 1681424212 1810764536 2101780265 2263455670 2942492371 3362848424 4203560530 4526911340 5884984742 8407121060 9053822680 11769969484 14712461855 16814242120 23539938968 29424923710 58849847420 67483314047 117699694840 134966628094 269933256188 337416570235 472383198329 539866512376 674833140470 877283082611 944766396658 1349666280940 1754566165222 1889532793316 2361915991645 2699332561880 3509132330444 3779065586632 4386415413055 4723831983290 6140981578277 7018264660888 8772830826110 9447663966580 12281963156554 17545661652220 18895327933160 24563926313108 30704907891385 35091323304440 49127852626216 61409815782770 122819631565540 245639263131080