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54409420 = 22513209267
BaseRepresentation
bin1100111110001…
…1100011001100
310210101021200201
43033203203030
5102412100140
65222103244
71230321022
oct317434314
9123337621
1054409420
112879266a
121627ab24
13b370430
147324712
154b9b49a
hex33e38cc

54409420 has 24 divisors (see below), whose sum is σ = 123049584. Its totient is φ = 20089536.

The previous prime is 54409417. The next prime is 54409447. The reversal of 54409420 is 2490445.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104374 + ... + 104893.

It is an arithmetic number, because the mean of its divisors is an integer number (5127066).

Almost surely, 254409420 is an apocalyptic number.

It is an amenable number.

54409420 is an abundant number, since it is smaller than the sum of its proper divisors (68640164).

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

54409420 is a wasteful number, since it uses less digits than its factorization.

54409420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209289 (or 209287 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 54409420 is about 7376.2741272271. The cubic root of 54409420 is about 378.9291643640.

Adding to 54409420 its reverse (2490445), we get a palindrome (56899865).

The spelling of 54409420 in words is "fifty-four million, four hundred nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 209267 418534 837068 1046335 2092670 2720471 4185340 5440942 10881884 13602355 27204710 54409420