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12642473267474 = 28883617115617
BaseRepresentation
bin1011011111111000111000…
…1000001101000100010010
31122202121102200212200221012
42313332032020031010102
53124113241124024344
642515512205530522
72443250162460461
oct267761610150422
948677380780835
1012642473267474
114034708630946
121502242873a42
1370924592c10b
14319c82ac29d8
1516dcd697029e
hexb7f8e20d112

12642473267474 has 8 divisors (see below), whose sum is σ = 18963733913148. Its totient is φ = 6321228629760.

The previous prime is 12642473267461. The next prime is 12642473267491. The reversal of 12642473267474 is 47476237424621.

It can be written as a sum of positive squares in 2 ways, for example, as 11456972584225 + 1185500683249 = 3384815^2 + 1088807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×126424732674743 (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781087 + ... + 5334530.

Almost surely, 212642473267474 is an apocalyptic number.

12642473267474 is a deficient number, since it is larger than the sum of its proper divisors (6321260645674).

12642473267474 is an equidigital number, since it uses as much as digits as its factorization.

12642473267474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8003980.

The product of its digits is 75866112, while the sum is 59.

The spelling of 12642473267474 in words is "twelve trillion, six hundred forty-two billion, four hundred seventy-three million, two hundred sixty-seven thousand, four hundred seventy-four".

Divisors: 1 2 888361 1776722 7115617 14231234 6321236633737 12642473267474