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29420 = 2251471
BaseRepresentation
bin111001011101100
31111100122
413023230
51420140
6344112
7151526
oct71354
944318
1029420
1120116
1215038
1310511
14aa16
158ab5
hex72ec

29420 has 12 divisors (see below), whose sum is σ = 61824. Its totient is φ = 11760.

The previous prime is 29411. The next prime is 29423. The reversal of 29420 is 2492.

It is not an unprimeable number, because it can be changed into a prime (29423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716 + ... + 755.

It is an arithmetic number, because the mean of its divisors is an integer number (5152).

229420 is an apocalyptic number.

29420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29420 is an abundant number, since it is smaller than the sum of its proper divisors (32404).

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 (30912).

29420 is a wasteful number, since it uses less digits than its factorization.

29420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 29420 is about 171.5225932640. The cubic root of 29420 is about 30.8707766847.

Subtracting from 29420 its sum of digits (17), we obtain a triangular number (29403 = T242).

The spelling of 29420 in words is "twenty-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1471 2942 5884 7355 14710 29420