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14278488 = 233784991
BaseRepresentation
bin110110011101…
…111101011000
3222212102101220
4312131331120
512123402423
61230012040
7232236150
oct66357530
928772356
1014278488
118072704
124947020
132c5c113
141c79760
1513c09e3
hexd9df58

14278488 has 32 divisors (see below), whose sum is σ = 40796160. Its totient is φ = 4079520.

The previous prime is 14278447. The next prime is 14278489. The reversal of 14278488 is 88487241.

It is a super-2 number, since 2×142784882 = 407750439132288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14278489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42328 + ... + 42663.

It is an arithmetic number, because the mean of its divisors is an integer number (1274880).

Almost surely, 214278488 is an apocalyptic number.

It is an amenable number.

14278488 is an abundant number, since it is smaller than the sum of its proper divisors (26517672).

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

14278488 is a wasteful number, since it uses less digits than its factorization.

14278488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85007 (or 85003 counting only the distinct ones).

The product of its digits is 114688, while the sum is 42.

The square root of 14278488 is about 3778.6886614274. The cubic root of 14278488 is about 242.6018306169.

The spelling of 14278488 in words is "fourteen million, two hundred seventy-eight thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 84991 169982 254973 339964 509946 594937 679928 1019892 1189874 1784811 2039784 2379748 3569622 4759496 7139244 14278488