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14180660 = 2251354541
BaseRepresentation
bin110110000110…
…000100110100
3222200110012122
4312012010310
512112240120
61223535112
7231351014
oct66060464
928613178
1014180660
11800615a
1248ba498
132c26730
141c51c44
1513a1a25
hexd86134

14180660 has 24 divisors (see below), whose sum is σ = 32070696. Its totient is φ = 5235840.

The previous prime is 14180659. The next prime is 14180687. The reversal of 14180660 is 6608141.

It can be written as a sum of positive squares in 4 ways, for example, as 446224 + 13734436 = 668^2 + 3706^2 .

It is a super-2 number, since 2×141806602 = 402182236071200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27011 + ... + 27530.

It is an arithmetic number, because the mean of its divisors is an integer number (1336279).

Almost surely, 214180660 is an apocalyptic number.

14180660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14180660 is an abundant number, since it is smaller than the sum of its proper divisors (17890036).

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

14180660 is a wasteful number, since it uses less digits than its factorization.

14180660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54563 (or 54561 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 14180660 is about 3765.7217103764. The cubic root of 14180660 is about 242.0465042792.

The spelling of 14180660 in words is "fourteen million, one hundred eighty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 54541 109082 218164 272705 545410 709033 1090820 1418066 2836132 3545165 7090330 14180660