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12622141 = 71803163
BaseRepresentation
bin110000001001…
…100100111101
3212202021022201
4300021210331
511212402031
61130311501
7212200150
oct60114475
925667281
1012622141
117141224
124288591
1327cc22c
141967c97
151194d61
hexc0993d

12622141 has 4 divisors (see below), whose sum is σ = 14425312. Its totient is φ = 10818972.

The previous prime is 12622139. The next prime is 12622153. The reversal of 12622141 is 14122621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12622141 - 21 = 12622139 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 (12622111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901575 + ... + 901588.

It is an arithmetic number, because the mean of its divisors is an integer number (3606328).

Almost surely, 212622141 is an apocalyptic number.

It is an amenable number.

12622141 is a deficient number, since it is larger than the sum of its proper divisors (1803171).

12622141 is an equidigital number, since it uses as much as digits as its factorization.

12622141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803170.

The product of its digits is 192, while the sum is 19.

The square root of 12622141 is about 3552.7652610326. The cubic root of 12622141 is about 232.8328973105.

Adding to 12622141 its reverse (14122621), we get a palindrome (26744762).

It can be divided in two parts, 1262 and 2141, that added together give a triangular number (3403 = T82).

The spelling of 12622141 in words is "twelve million, six hundred twenty-two thousand, one hundred forty-one".

Divisors: 1 7 1803163 12622141