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14807988 = 22331353199
BaseRepresentation
bin111000011111…
…001110110100
31000212022202000
4320133032310
512242323423
61245215300
7236602656
oct70371664
930768660
1014807988
1183a4508
124b61530
1330b6130
141d766d6
151477843
hexe1f3b4

14807988 has 96 divisors (see below), whose sum is σ = 42336000. Its totient is φ = 4447872.

The previous prime is 14807983. The next prime is 14807999. The reversal of 14807988 is 88970841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14807981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74313 + ... + 74511.

It is an arithmetic number, because the mean of its divisors is an integer number (441000).

Almost surely, 214807988 is an apocalyptic number.

14807988 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 14807988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21168000).

14807988 is an abundant number, since it is smaller than the sum of its proper divisors (27528012).

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

14807988 is a wasteful number, since it uses less digits than its factorization.

14807988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 14807988 is about 3848.1148631505. The cubic root of 14807988 is about 245.5643688119.

The spelling of 14807988 in words is "fourteen million, eight hundred seven thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 53 54 78 106 108 117 156 159 199 212 234 318 351 398 468 477 597 636 689 702 796 954 1194 1378 1404 1431 1791 1908 2067 2388 2587 2756 2862 3582 4134 5174 5373 5724 6201 7164 7761 8268 10348 10547 10746 12402 15522 18603 21094 21492 23283 24804 31044 31641 37206 42188 46566 63282 69849 74412 93132 94923 126564 137111 139698 189846 274222 279396 284769 379692 411333 548444 569538 822666 1139076 1233999 1645332 2467998 3701997 4935996 7403994 14807988