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12258432989281 = 53792927736563
BaseRepresentation
bin1011001001100010001110…
…0010110011100001100001
31121101220011021100012110001
42302120203202303201201
53101320232321124111
642023240225540001
72403433253122603
oct262304342634141
947356137305401
1012258432989281
1139a6854933786
12145b9244a4601
136abc7191395b
143054503a9173
15163d0b2631c1
hexb26238b3861

12258432989281 has 8 divisors (see below), whose sum is σ = 12647821956480. Its totient is φ = 11874899495472.

The previous prime is 12258432989227. The next prime is 12258432989291. The reversal of 12258432989281 is 18298923485221.

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

It is a cyclic number.

It is not a de Polignac number, because 12258432989281 - 213 = 12258432981089 is a prime.

It is a super-2 number, since 2×122584329892812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12258432989221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463864095 + ... + 1463872468.

It is an arithmetic number, because the mean of its divisors is an integer number (1580977744560).

Almost surely, 212258432989281 is an apocalyptic number.

It is an amenable number.

12258432989281 is a deficient number, since it is larger than the sum of its proper divisors (389388967199).

12258432989281 is an equidigital number, since it uses as much as digits as its factorization.

12258432989281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927736695.

The product of its digits is 39813120, while the sum is 64.

It can be divided in two parts, 1225843 and 2989281, that added together give a palindrome (4215124).

The spelling of 12258432989281 in words is "twelve trillion, two hundred fifty-eight billion, four hundred thirty-two million, nine hundred eighty-nine thousand, two hundred eighty-one".

Divisors: 1 53 79 4187 2927736563 155170037839 231291188477 12258432989281