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12812043419931 = 371275591859223
BaseRepresentation
bin1011101001110000100101…
…0011000000000100011011
31200100211010100000222002010
42322130021103000010123
53134403031103414211
643125434350441003
72461432244132010
oct272341123000433
950324110028063
1012812043419931
11409a614557208
12152b087503163
1371c22a7c4132
1432416b625707
1517340d6ad4a6
hexba7094c011b

12812043419931 has 32 divisors (see below), whose sum is σ = 19680381370368. Its totient is φ = 7262213081760.

The previous prime is 12812043419887. The next prime is 12812043420049. The reversal of 12812043419931 is 13991434021821.

It is not a de Polignac number, because 12812043419931 - 26 = 12812043419867 is a prime.

It is a super-2 number, since 2×128120434199312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12812043415931) 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, 14481586 + ... + 15340808.

It is an arithmetic number, because the mean of its divisors is an integer number (615011917824).

Almost surely, 212812043419931 is an apocalyptic number.

12812043419931 is a deficient number, since it is larger than the sum of its proper divisors (6868337950437).

12812043419931 is a wasteful number, since it uses less digits than its factorization.

12812043419931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864951.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 12812043419931 in words is "twelve trillion, eight hundred twelve billion, forty-three million, four hundred nineteen thousand, nine hundred thirty-one".

Divisors: 1 3 7 21 127 381 889 2667 5591 16773 39137 117411 710057 859223 2130171 2577669 4970399 6014561 14911197 18043683 109121321 327363963 763849247 2291547741 4803915793 14411747379 33627410551 100882231653 610097305711 1830291917133 4270681139977 12812043419931