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12487068 = 22331123457
BaseRepresentation
bin101111101000…
…100110011100
3212111102001000
4233220212130
511144041233
61123350300
7211065306
oct57504634
925442030
1012487068
1170597a0
124222390
1327828c9
141930976
151169d13
hexbe899c

12487068 has 96 divisors (see below), whose sum is σ = 36933120. Its totient is φ = 3611520.

The previous prime is 12487039. The next prime is 12487073. The reversal of 12487068 is 86078421.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27096 + ... + 27552.

It is an arithmetic number, because the mean of its divisors is an integer number (384720).

Almost surely, 212487068 is an apocalyptic number.

12487068 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 12487068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18466560).

12487068 is an abundant number, since it is smaller than the sum of its proper divisors (24446052).

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

12487068 is a wasteful number, since it uses less digits than its factorization.

12487068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 12487068 is about 3533.7045716924. The cubic root of 12487068 is about 231.9993806959. Note that the first 3 decimals are identical.

The spelling of 12487068 in words is "twelve million, four hundred eighty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 23 27 33 36 44 46 54 66 69 92 99 108 132 138 198 207 253 276 297 396 414 457 506 594 621 759 828 914 1012 1188 1242 1371 1518 1828 2277 2484 2742 3036 4113 4554 5027 5484 6831 8226 9108 10054 10511 12339 13662 15081 16452 20108 21022 24678 27324 30162 31533 42044 45243 49356 60324 63066 90486 94599 115621 126132 135729 180972 189198 231242 271458 283797 346863 378396 462484 542916 567594 693726 1040589 1135188 1387452 2081178 3121767 4162356 6243534 12487068