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51205353 = 367254753
BaseRepresentation
bin1100001101010…
…1010011101001
310120100111112120
43003111103221
5101102032403
65025301453
71161144513
oct303252351
9116314476
1051205353
11269a4381
1215194889
13a7bac34
146b2cbb3
154766e53
hex30d54e9

51205353 has 8 divisors (see below), whose sum is σ = 69293088. Its totient is φ = 33627264.

The previous prime is 51205321. The next prime is 51205379. The reversal of 51205353 is 35350215.

51205353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51205353 - 25 = 51205321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51200353) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 127176 + ... + 127577.

It is an arithmetic number, because the mean of its divisors is an integer number (8661636).

Almost surely, 251205353 is an apocalyptic number.

It is an amenable number.

51205353 is a deficient number, since it is larger than the sum of its proper divisors (18087735).

51205353 is a wasteful number, since it uses less digits than its factorization.

51205353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254823.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 51205353 is about 7155.7915704693. The cubic root of 51205353 is about 371.3400470844.

Adding to 51205353 its reverse (35350215), we get a palindrome (86555568).

The spelling of 51205353 in words is "fifty-one million, two hundred five thousand, three hundred fifty-three".

Divisors: 1 3 67 201 254753 764259 17068451 51205353