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12973788 = 22321722943
BaseRepresentation
bin110001011111…
…011011011100
3220102010200200
4301133123130
511310130123
61142023500
7215163312
oct61373334
926363620
1012973788
117361443
124417b90
1328c32c9
141a1a0b2
151214143
hexc5f6dc

12973788 has 108 divisors (see below), whose sum is σ = 36876840. Its totient is φ = 3838464.

The previous prime is 12973781. The next prime is 12973801. The reversal of 12973788 is 88737921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12973781) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 301695 + ... + 301737.

Almost surely, 212973788 is an apocalyptic number.

12973788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12973788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18438420).

12973788 is an abundant number, since it is smaller than the sum of its proper divisors (23903052).

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

12973788 is a wasteful number, since it uses less digits than its factorization.

12973788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 94 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 12973788 is about 3601.9144909340. The cubic root of 12973788 is about 234.9753286307.

The spelling of 12973788 in words is "twelve million, nine hundred seventy-three thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 29 34 36 43 51 58 68 86 87 102 116 129 153 172 174 204 258 261 289 306 348 387 493 516 522 578 612 731 774 867 986 1044 1156 1247 1462 1479 1548 1734 1972 2193 2494 2601 2924 2958 3468 3741 4386 4437 4988 5202 5916 6579 7482 8381 8772 8874 10404 11223 12427 13158 14964 16762 17748 21199 22446 24854 25143 26316 33524 37281 42398 44892 49708 50286 63597 74562 75429 84796 100572 111843 127194 149124 150858 190791 223686 254388 301716 360383 381582 447372 720766 763164 1081149 1441532 2162298 3243447 4324596 6486894 12973788