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12504996 = 22337217139
BaseRepresentation
bin101111101100…
…111110100100
3212112022122000
4233230332210
511200124441
61124005300
7211201500
oct57547644
925468560
1012504996
117071209
124230830
13278ab0a
141937300
1511702b6
hexbecfa4

12504996 has 144 divisors (see below), whose sum is σ = 40219200. Its totient is φ = 3338496.

The previous prime is 12504977. The next prime is 12505037. The reversal of 12504996 is 69940521.

It is a super-3 number, since 3×125049963 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12504996.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89895 + ... + 90033.

It is an arithmetic number, because the mean of its divisors is an integer number (279300).

Almost surely, 212504996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12504996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20109600).

12504996 is an abundant number, since it is smaller than the sum of its proper divisors (27714204).

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

12504996 is a wasteful number, since it uses less digits than its factorization.

12504996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 12504996 is about 3536.2403764450. The cubic root of 12504996 is about 232.1103567327.

12504996 divided by its sum of digits (36) gives a triangular number (347361 = T833).

The spelling of 12504996 in words is "twelve million, five hundred four thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 21 27 28 34 36 42 49 51 54 63 68 84 98 102 108 119 126 139 147 153 189 196 204 238 252 278 294 306 357 378 417 441 459 476 556 588 612 714 756 833 834 882 918 973 1071 1251 1323 1428 1666 1668 1764 1836 1946 2142 2363 2499 2502 2646 2919 3213 3332 3753 3892 4284 4726 4998 5004 5292 5838 6426 6811 7089 7497 7506 8757 9452 9996 11676 12852 13622 14178 14994 15012 16541 17514 20433 21267 22491 26271 27244 28356 29988 33082 35028 40866 42534 44982 49623 52542 61299 63801 66164 81732 85068 89964 99246 105084 115787 122598 127602 148869 183897 198492 231574 245196 255204 297738 347361 367794 446607 463148 595476 694722 735588 893214 1042083 1389444 1786428 2084166 3126249 4168332 6252498 12504996