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29180 = 2251459
BaseRepresentation
bin111000111111100
31111000202
413013330
51413210
6343032
7151034
oct70774
944022
1029180
111aa18
1214a78
1310388
14a8c4
1589a5
hex71fc

29180 has 12 divisors (see below), whose sum is σ = 61320. Its totient is φ = 11664.

The previous prime is 29179. The next prime is 29191. The reversal of 29180 is 8192.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1459 = 29180 / (2 + 9 + 1 + 8 + 0).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (5110).

229180 is an apocalyptic number.

29180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29180 is an abundant number, since it is smaller than the sum of its proper divisors (32140).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30660).

29180 is a wasteful number, since it uses less digits than its factorization.

29180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 29180 is about 170.8215443087. The cubic root of 29180 is about 30.7866023700.

The spelling of 29180 in words is "twenty-nine thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 1459 2918 5836 7295 14590 29180