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51280352 = 252955259
BaseRepresentation
bin1100001110011…
…1100111100000
310120111022102022
43003213213200
5101111432402
65031041012
71161606254
oct303474740
9116438368
1051280352
1126a45762
1215210168
13a816106
146b4c264
15477e2a2
hex30e79e0

51280352 has 24 divisors (see below), whose sum is σ = 104441400. Its totient is φ = 24755584.

The previous prime is 51280349. The next prime is 51280379. The reversal of 51280352 is 25308215.

51280352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26702 + ... + 28557.

It is an arithmetic number, because the mean of its divisors is an integer number (4351725).

Almost surely, 251280352 is an apocalyptic number.

It is an amenable number.

51280352 is an abundant number, since it is smaller than the sum of its proper divisors (53161048).

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

51280352 is a wasteful number, since it uses less digits than its factorization.

51280352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55298 (or 55290 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51280352 is about 7161.0300934991. The cubic root of 51280352 is about 371.5212556529.

Adding to 51280352 its reverse (25308215), we get a palindrome (76588567).

The spelling of 51280352 in words is "fifty-one million, two hundred eighty thousand, three hundred fifty-two".

Divisors: 1 2 4 8 16 29 32 58 116 232 464 928 55259 110518 221036 442072 884144 1602511 1768288 3205022 6410044 12820088 25640176 51280352