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12903319 = 112132631
BaseRepresentation
bin110001001110…
…001110010111
3220021120000201
4301032032113
511300401234
61140321331
7214451002
oct61161627
926246021
1012903319
117313500
1243a3247
13289a200
1419dc539
1511ed314
hexc4e397

12903319 has 18 divisors (see below), whose sum is σ = 15382248. Its totient is φ = 10810800.

The previous prime is 12903313. The next prime is 12903349. The reversal of 12903319 is 91330921.

It is not a de Polignac number, because 12903319 - 25 = 12903287 is a prime.

It is a super-2 number, since 2×129033192 = 332991282431522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12903313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20134 + ... + 20764.

Almost surely, 212903319 is an apocalyptic number.

12903319 is a deficient number, since it is larger than the sum of its proper divisors (2478929).

12903319 is a wasteful number, since it uses less digits than its factorization.

12903319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 12903319 is about 3592.1190125050. The cubic root of 12903319 is about 234.5491219041.

The spelling of 12903319 in words is "twelve million, nine hundred three thousand, three hundred nineteen".

Divisors: 1 11 13 121 143 169 631 1573 1859 6941 8203 20449 76351 90233 106639 992563 1173029 12903319