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55242304 = 261367991
BaseRepresentation
bin1101001010111…
…0111001000000
310211221121012021
43102232321000
5103120223204
65252011224
71240360165
oct322567100
9124847167
1055242304
11292013a7
1216600b14
13b5a2570
1474a006c
154cb3154
hex34aee40

55242304 has 56 divisors (see below), whose sum is σ = 119936768. Its totient is φ = 25090560.

The previous prime is 55242301. The next prime is 55242311. The reversal of 55242304 is 40324255.

It is not an unprimeable number, because it can be changed into a prime (55242301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55249 + ... + 56239.

It is an arithmetic number, because the mean of its divisors is an integer number (2141728).

Almost surely, 255242304 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 55242304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59968384).

55242304 is an abundant number, since it is smaller than the sum of its proper divisors (64694464).

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

55242304 is a wasteful number, since it uses less digits than its factorization.

55242304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 55242304 is about 7432.5166666480. The cubic root of 55242304 is about 380.8528949897.

Adding to 55242304 its reverse (40324255), we get a palindrome (95566559).

The spelling of 55242304 in words is "fifty-five million, two hundred forty-two thousand, three hundred four".

Divisors: 1 2 4 8 13 16 26 32 52 64 67 104 134 208 268 416 536 832 871 991 1072 1742 1982 2144 3484 3964 4288 6968 7928 12883 13936 15856 25766 27872 31712 51532 55744 63424 66397 103064 132794 206128 265588 412256 531176 824512 863161 1062352 1726322 2124704 3452644 4249408 6905288 13810576 27621152 55242304