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12870469 is a prime number
BaseRepresentation
bin110001000110…
…001101000101
3220012212222001
4301012031011
511243323334
61135505301
7214253143
oct61061505
926185861
1012870469
1172a0857
124388231
132888281
1419d0593
1511e3714
hexc46345

12870469 has 2 divisors, whose sum is σ = 12870470. Its totient is φ = 12870468.

The previous prime is 12870457. The next prime is 12870493. The reversal of 12870469 is 96407821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11819844 + 1050625 = 3438^2 + 1025^2 .

It is an emirp because it is prime and its reverse (96407821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12870469 is a prime.

It is a super-2 number, since 2×128704692 = 331297944559922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12870449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435234 + 6435235.

It is an arithmetic number, because the mean of its divisors is an integer number (6435235).

Almost surely, 212870469 is an apocalyptic number.

It is an amenable number.

12870469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12870469 is an equidigital number, since it uses as much as digits as its factorization.

12870469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 12870469 is about 3587.5435885854. The cubic root of 12870469 is about 234.3499099423.

The spelling of 12870469 in words is "twelve million, eight hundred seventy thousand, four hundred sixty-nine".