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12247092 = 22331113261
BaseRepresentation
bin101110101110…
…000000110100
3212001012212000
4232232000310
511113401332
61114255300
7206045544
oct56560064
925035760
1012247092
116a05470
124127530
1326ca600
1418ab324
15111db7c
hexbae034

12247092 has 144 divisors (see below), whose sum is σ = 38122560. Its totient is φ = 3369600.

The previous prime is 12247087. The next prime is 12247093. The reversal of 12247092 is 29074221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12247093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200742 + ... + 200802.

It is an arithmetic number, because the mean of its divisors is an integer number (264740).

Almost surely, 212247092 is an apocalyptic number.

12247092 is a gapful number since it is divisible by the number (12) 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 12247092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19061280).

12247092 is an abundant number, since it is smaller than the sum of its proper divisors (25875468).

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

12247092 is a wasteful number, since it uses less digits than its factorization.

12247092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12247092 is about 3499.5845467712. The cubic root of 12247092 is about 230.5035721406.

The spelling of 12247092 in words is "twelve million, two hundred forty-seven thousand, ninety-two".

Divisors: 1 2 3 4 6 9 11 12 13 18 22 26 27 33 36 39 44 52 54 61 66 78 99 108 117 122 132 143 156 169 183 198 234 244 286 297 338 351 366 396 429 468 507 549 572 594 671 676 702 732 793 858 1014 1098 1188 1287 1342 1404 1521 1586 1647 1716 1859 2013 2028 2196 2379 2574 2684 3042 3172 3294 3718 3861 4026 4563 4758 5148 5577 6039 6084 6588 7137 7436 7722 8052 8723 9126 9516 10309 11154 12078 14274 15444 16731 17446 18117 18252 20618 21411 22308 24156 26169 28548 30927 33462 34892 36234 41236 42822 50193 52338 61854 66924 72468 78507 85644 92781 100386 104676 113399 123708 157014 185562 200772 226798 235521 278343 314028 340197 371124 453596 471042 556686 680394 942084 1020591 1113372 1360788 2041182 3061773 4082364 6123546 12247092