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12071316 = 2231397237
BaseRepresentation
bin101110000011…
…000110010100
3211201021201210
4232003012110
511042240231
61110421420
7204414225
oct56030624
924637653
1012071316
1168a53a4
124061870
1326685ba
14186324c
1510d6a46
hexb83194

12071316 has 24 divisors (see below), whose sum is σ = 28372960. Its totient is φ = 3994272.

The previous prime is 12071299. The next prime is 12071317. The reversal of 12071316 is 61317021.

It is a junction number, because it is equal to n+sod(n) for n = 12071292 and 12071301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071317) 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, 1951 + ... + 5286.

Almost surely, 212071316 is an apocalyptic number.

It is an amenable number.

12071316 is an abundant number, since it is smaller than the sum of its proper divisors (16301644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12071316 is a wasteful number, since it uses less digits than its factorization.

12071316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7383 (or 7381 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 12071316 is about 3474.3799446808. The cubic root of 12071316 is about 229.3954887939.

Adding to 12071316 its reverse (61317021), we get a palindrome (73388337).

The spelling of 12071316 in words is "twelve million, seventy-one thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 12 139 278 417 556 834 1668 7237 14474 21711 28948 43422 86844 1005943 2011886 3017829 4023772 6035658 12071316