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14155660 = 2254161283
BaseRepresentation
bin110101111111…
…111110001100
3222122011220201
4311333332030
512110440120
61223223244
7231215101
oct65777614
928564821
1014155660
117a993a2
1248a7b24
132c1823c
141c46aa8
15139940a
hexd7ff8c

14155660 has 48 divisors (see below), whose sum is σ = 31060512. Its totient is φ = 5414400.

The previous prime is 14155651. The next prime is 14155663. The reversal of 14155660 is 6655141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14155663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49879 + ... + 50161.

It is an arithmetic number, because the mean of its divisors is an integer number (647094).

Almost surely, 214155660 is an apocalyptic number.

14155660 is a gapful number since it is divisible by the number (10) 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 14155660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15530256).

14155660 is an abundant number, since it is smaller than the sum of its proper divisors (16904852).

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

14155660 is a wasteful number, since it uses less digits than its factorization.

14155660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 14155660 is about 3762.4008292578. The cubic root of 14155660 is about 241.9041808121.

It can be divided in two parts, 1415 and 5660, that multiplied together give a square (8008900 = 28302).

The spelling of 14155660 in words is "fourteen million, one hundred fifty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 41 61 82 122 164 205 244 283 305 410 566 610 820 1132 1220 1415 2501 2830 5002 5660 10004 11603 12505 17263 23206 25010 34526 46412 50020 58015 69052 86315 116030 172630 232060 345260 707783 1415566 2831132 3538915 7077830 14155660