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12247074 = 232737271
BaseRepresentation
bin101110101110…
…000000100010
3212001012211100
4232232000202
511113401244
61114255230
7206045520
oct56560042
925035740
1012247074
116a05454
124127516
1326ca5b8
1418ab310
15111db69
hexbae022

12247074 has 72 divisors (see below), whose sum is σ = 31606848. Its totient is φ = 3356640.

The previous prime is 12247051. The next prime is 12247087. The reversal of 12247074 is 47074221.

It is a happy number.

12247074 is a `hidden beast` number, since 122 + 470 + 74 = 666.

It is a super-2 number, since 2×122470742 = 299981643122952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 172459 + ... + 172529.

It is an arithmetic number, because the mean of its divisors is an integer number (438984).

Almost surely, 212247074 is an apocalyptic number.

12247074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12247074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15803424).

12247074 is an abundant number, since it is smaller than the sum of its proper divisors (19359774).

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

12247074 is a wasteful number, since it uses less digits than its factorization.

12247074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 12247074 is about 3499.5819750364. The cubic root of 12247074 is about 230.5034592141.

The spelling of 12247074 in words is "twelve million, two hundred forty-seven thousand, seventy-four".

Divisors: 1 2 3 6 7 9 14 18 21 37 42 63 71 74 111 126 142 213 222 259 333 426 497 518 639 666 777 994 1278 1369 1491 1554 2331 2627 2738 2982 4107 4473 4662 5254 7881 8214 8946 9583 12321 15762 18389 19166 23643 24642 28749 36778 47286 55167 57498 86247 97199 110334 165501 172494 194398 291597 331002 583194 680393 874791 1360786 1749582 2041179 4082358 6123537 12247074