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260423406976980 = 2235131572126599763
BaseRepresentation
bin111011001101101010001100…
…101010011111111111010100
31021011002020022222221120120210
4323031222030222133333110
5233113234114141230410
62321512510032525420
7105565653540344532
oct7315521452377724
91234066288846523
10260423406976980
1175a84a46018025
122525b9740b0870
13b240a8b94ca30
1448447bb0ab152
15201932543b220
hexecda8ca9ffd4

260423406976980 has 96 divisors (see below), whose sum is σ = 790278497898624. Its totient is φ = 63695916071424.

The previous prime is 260423406976937. The next prime is 260423406977003. The reversal of 260423406976980 is 89679604324062.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1063177422 + ... + 1063422341.

It is an arithmetic number, because the mean of its divisors is an integer number (8232067686444).

Almost surely, 2260423406976980 is an apocalyptic number.

260423406976980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260423406976980 is an abundant number, since it is smaller than the sum of its proper divisors (529855090921644).

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

260423406976980 is a wasteful number, since it uses less digits than its factorization.

260423406976980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126599945 (or 2126599943 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 66.

The spelling of 260423406976980 in words is "two hundred sixty trillion, four hundred twenty-three billion, four hundred six million, nine hundred seventy-six thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 157 195 260 314 390 471 628 780 785 942 1570 1884 2041 2355 3140 4082 4710 6123 8164 9420 10205 12246 20410 24492 30615 40820 61230 122460 2126599763 4253199526 6379799289 8506399052 10632998815 12759598578 21265997630 25519197156 27645796919 31898996445 42531995260 55291593838 63797992890 82937390757 110583187676 127595985780 138228984595 165874781514 276457969190 331749563028 333876162791 414686953785 552915938380 667752325582 829373907570 1001628488373 1335504651164 1658747815140 1669380813955 2003256976746 3338761627910 4006513953492 4340390116283 5008142441865 6677523255820 8680780232566 10016284883730 13021170348849 17361560465132 20032569767460 21701950581415 26042340697698 43403901162830 52084681395396 65105851744245 86807802325660 130211703488490 260423406976980