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54246220 = 2257439011
BaseRepresentation
bin1100111011101…
…1101101001100
310210001222211021
43032323231030
5102341334340
65214403524
71226041150
oct316735514
9123058737
1054246220
1128690a96
12162005a4
13b314072
1472c1060
154b67e4a
hex33bbb4c

54246220 has 48 divisors (see below), whose sum is σ = 133233408. Its totient is φ = 18164160.

The previous prime is 54246217. The next prime is 54246221. The reversal of 54246220 is 2264245.

It is not an unprimeable number, because it can be changed into a prime (54246221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1515 + ... + 10525.

It is an arithmetic number, because the mean of its divisors is an integer number (2775696).

Almost surely, 254246220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54246220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66616704).

54246220 is an abundant number, since it is smaller than the sum of its proper divisors (78987188).

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

54246220 is a wasteful number, since it uses less digits than its factorization.

54246220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9070 (or 9068 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 54246220 is about 7365.2033237379. The cubic root of 54246220 is about 378.5499213739.

The spelling of 54246220 in words is "fifty-four million, two hundred forty-six thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 43 70 86 140 172 215 301 430 602 860 1204 1505 3010 6020 9011 18022 36044 45055 63077 90110 126154 180220 252308 315385 387473 630770 774946 1261540 1549892 1937365 2712311 3874730 5424622 7749460 10849244 13561555 27123110 54246220