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51132302 = 2132151279
BaseRepresentation
bin1100001100001…
…1011110001110
310120012210022222
43003003132032
5101042213202
65023535342
71160421524
oct303033616
9116183288
1051132302
1126954501
121515a552
13a793900
146b10314
1547504a2
hex30c378e

51132302 has 12 divisors (see below), whose sum is σ = 83052720. Its totient is φ = 23599368.

The previous prime is 51132293. The next prime is 51132317. The reversal of 51132302 is 20323115.

51132302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×511323022 = 5229024615638408, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 75302 + ... + 75977.

It is an arithmetic number, because the mean of its divisors is an integer number (6921060).

Almost surely, 251132302 is an apocalyptic number.

51132302 is a deficient number, since it is larger than the sum of its proper divisors (31920418).

51132302 is a wasteful number, since it uses less digits than its factorization.

51132302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151307 (or 151294 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 51132302 is about 7150.6854216921. The cubic root of 51132302 is about 371.1633749831.

Adding to 51132302 its reverse (20323115), we get a palindrome (71455417).

The spelling of 51132302 in words is "fifty-one million, one hundred thirty-two thousand, three hundred two".

Divisors: 1 2 13 26 169 338 151279 302558 1966627 3933254 25566151 51132302