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12345847711980 = 22352919336763289
BaseRepresentation
bin1011001110100111110111…
…0111100000100011101100
31121201020210100120012211020
42303221331313200203230
53104233244003240410
642131334254454140
72412646421034546
oct263517567404354
947636710505736
1012345847711980
113a2a9321a5762
12147485b504350
136b7292c49343
14309783bb8696
1516622566ba70
hexb3a7dde08ec

12345847711980 has 96 divisors (see below), whose sum is σ = 35945674430400. Its totient is φ = 3162230980608.

The previous prime is 12345847711973. The next prime is 12345847711991. The reversal of 12345847711980 is 8911774854321.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 18045825 + ... + 18717464.

It is an arithmetic number, because the mean of its divisors is an integer number (374434108650).

Almost surely, 212345847711980 is an apocalyptic number.

12345847711980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12345847711980 is an abundant number, since it is smaller than the sum of its proper divisors (23599826718420).

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

12345847711980 is a wasteful number, since it uses less digits than its factorization.

12345847711980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36763523 (or 36763521 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 12345847711980 in words is "twelve trillion, three hundred forty-five billion, eight hundred forty-seven million, seven hundred eleven thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 193 290 348 386 435 579 580 772 870 965 1158 1740 1930 2316 2895 3860 5597 5790 11194 11580 16791 22388 27985 33582 55970 67164 83955 111940 167910 335820 36763289 73526578 110289867 147053156 183816445 220579734 367632890 441159468 551449335 735265780 1066135381 1102898670 2132270762 2205797340 3198406143 4264541524 5330676905 6396812286 7095314777 10661353810 12793624572 14190629554 15992030715 21285944331 21322707620 28381259108 31984061430 35476573885 42571888662 63968122860 70953147770 85143777324 106429721655 141906295540 205764128533 212859443310 411528257066 425718886620 617292385599 823056514132 1028820642665 1234584771198 2057641285330 2469169542396 3086461927995 4115282570660 6172923855990 12345847711980