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12948961343976 = 233472407815613
BaseRepresentation
bin1011110001101110101000…
…1111011011100111101000
31200211220112101021011110000
42330123222033123213220
53144123433101001401
643312400513023000
72504350222235100
oct274335217334750
950756471234400
1012948961343976
114142695111039
121551718b54a60
1372c10a995638
1432aa397a4200
15176c73a27186
hexbc6ea3db9e8

12948961343976 has 120 divisors (see below), whose sum is σ = 42190564346370. Its totient is φ = 3699703232064.

The previous prime is 12948961343947. The next prime is 12948961343993. The reversal of 12948961343976 is 67934316984921.

12948961343976 is a `hidden beast` number, since 1 + 2 + 9 + 489 + 6 + 13 + 43 + 97 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12442339116900 + 506622227076 = 3527370^2 + 711774^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 203876055 + ... + 203939558.

Almost surely, 212948961343976 is an apocalyptic number.

It is an amenable number.

12948961343976 is an abundant number, since it is smaller than the sum of its proper divisors (29241603002394).

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

12948961343976 is a wasteful number, since it uses less digits than its factorization.

12948961343976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407815645 (or 407815625 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 72.

The spelling of 12948961343976 in words is "twelve trillion, nine hundred forty-eight billion, nine hundred sixty-one million, three hundred forty-three thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 49 54 56 63 72 81 84 98 108 126 147 162 168 189 196 216 252 294 324 378 392 441 504 567 588 648 756 882 1134 1176 1323 1512 1764 2268 2646 3528 3969 4536 5292 7938 10584 15876 31752 407815613 815631226 1223446839 1631262452 2446893678 2854709291 3262524904 3670340517 4893787356 5709418582 7340681034 8564127873 9787574712 11011021551 11418837164 14681362068 17128255746 19982965037 22022043102 22837674328 25692383619 29362724136 33033064653 34256511492 39965930074 44044086204 51384767238 59948895111 66066129306 68513022984 77077150857 79931860148 88088172408 102769534476 119897790222 132132258612 154154301714 159863720296 179846685333 205539068952 231231452571 239795580444 264264517224 308308603428 359693370666 462462905142 479591160888 539540055999 616617206856 719386741332 924925810284 1079080111998 1438773482664 1618620167997 1849851620568 2158160223996 3237240335994 4316320447992 6474480671988 12948961343976