Search a number
-
+
12430142001421 = 176033712118349
BaseRepresentation
bin1011010011100001111000…
…1100101101000100001101
31122000022100222010210111021
42310320132030231010031
53112123412323021141
642234154533554141
72422022335466464
oct264703614550415
948008328123437
1012430142001421
113a62659119a81
1214890654a5951
136c2207951311
1430d89cdd19db
1516850ab426d1
hexb4e1e32d10d

12430142001421 has 8 divisors (see below), whose sum is σ = 13161546041400. Its totient is φ = 11698762318848.

The previous prime is 12430142001419. The next prime is 12430142001469. The reversal of 12430142001421 is 12410024103421.

It can be written as a sum of positive squares in 4 ways, for example, as 654503652196 + 11775638349225 = 809014^2 + 3431565^2 .

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

It is not a de Polignac number, because 12430142001421 - 21 = 12430142001419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430142001401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5033446 + ... + 7084903.

It is an arithmetic number, because the mean of its divisors is an integer number (1645193255175).

Almost surely, 212430142001421 is an apocalyptic number.

It is an amenable number.

12430142001421 is a deficient number, since it is larger than the sum of its proper divisors (731404039979).

12430142001421 is a wasteful number, since it uses less digits than its factorization.

12430142001421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12178703.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 12430142001421 its reverse (12410024103421), we get a palindrome (24840166104842).

The spelling of 12430142001421 in words is "twelve trillion, four hundred thirty billion, one hundred forty-two million, one thousand, four hundred twenty-one".

Divisors: 1 17 60337 1025729 12118349 206011933 731184823613 12430142001421