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54220 = 2252711
BaseRepresentation
bin1101001111001100
32202101011
431033030
53213340
61055004
7314035
oct151714
982334
1054220
1137811
1227464
131b8aa
1415a8c
15110ea
hexd3cc

54220 has 12 divisors (see below), whose sum is σ = 113904. Its totient is φ = 21680.

The previous prime is 54217. The next prime is 54251. The reversal of 54220 is 2245.

54220 = T89 + T90 + ... + T100.

It is a happy number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 54220.

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, 1336 + ... + 1375.

It is an arithmetic number, because the mean of its divisors is an integer number (9492).

254220 is an apocalyptic number.

It is an amenable number.

54220 is an abundant number, since it is smaller than the sum of its proper divisors (59684).

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 (56952).

54220 is a wasteful number, since it uses less digits than its factorization.

54220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 54220 is about 232.8518842526. The cubic root of 54220 is about 37.8488920635.

Adding to 54220 its reverse (2245), we get a palindrome (56465).

It can be divided in two parts, 5 and 4220, that added together give a square (4225 = 652).

The spelling of 54220 in words is "fifty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2711 5422 10844 13555 27110 54220