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51201336 = 2333168819
BaseRepresentation
bin1100001101010…
…0010100111000
310120100022000210
43003110110320
5101101420321
65025231120
71161130014
oct303242470
9116308023
1051201336
11269a135a
12151924a0
13a7b9164
146b2b544
154765b76
hex30d4538

51201336 has 32 divisors (see below), whose sum is σ = 132134400. Its totient is φ = 16516320.

The previous prime is 51201313. The next prime is 51201341. The reversal of 51201336 is 63310215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33666 + ... + 35153.

It is an arithmetic number, because the mean of its divisors is an integer number (4129200).

Almost surely, 251201336 is an apocalyptic number.

It is an amenable number.

51201336 is an abundant number, since it is smaller than the sum of its proper divisors (80933064).

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

51201336 is a wasteful number, since it uses less digits than its factorization.

51201336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68859 (or 68855 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 51201336 is about 7155.5108832284. The cubic root of 51201336 is about 371.3303364332.

The spelling of 51201336 in words is "fifty-one million, two hundred one thousand, three hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 68819 137638 206457 275276 412914 550552 825828 1651656 2133389 4266778 6400167 8533556 12800334 17067112 25600668 51201336