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14680278 = 23490619
BaseRepresentation
bin111000000000…
…000011010110
31000121211120000
4320000003112
512224232103
61242352130
7235531434
oct70000326
930554500
1014680278
118317568
124abb646
13306cc72
141d41d54
15144eaa3
hexe000d6

14680278 has 20 divisors (see below), whose sum is σ = 32895060. Its totient is φ = 4893372.

The previous prime is 14680277. The next prime is 14680297. The reversal of 14680278 is 87208641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14680277) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 45148 + ... + 45471.

It is an arithmetic number, because the mean of its divisors is an integer number (1644753).

Almost surely, 214680278 is an apocalyptic number.

14680278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14680278 is an abundant number, since it is smaller than the sum of its proper divisors (18214782).

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

14680278 is an equidigital number, since it uses as much as digits as its factorization.

14680278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90633 (or 90624 counting only the distinct ones).

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

The square root of 14680278 is about 3831.4850906665. The cubic root of 14680278 is about 244.8563811889.

The spelling of 14680278 in words is "fourteen million, six hundred eighty thousand, two hundred seventy-eight".

Divisors: 1 2 3 6 9 18 27 54 81 162 90619 181238 271857 543714 815571 1631142 2446713 4893426 7340139 14680278