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51552343 = 291998933
BaseRepresentation
bin1100010010101…
…0000001010111
310121000010112001
43010222001113
5101144133333
65040540131
71164121243
oct304520127
9117003461
1051552343
1127111047
1215321647
13a8acb5b
146bbd423
1547d4b7d
hex312a057

51552343 has 8 divisors (see below), whose sum is σ = 53604000. Its totient is φ = 49519008.

The previous prime is 51552337. The next prime is 51552367. The reversal of 51552343 is 34325515.

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

It is a de Polignac number, because none of the positive numbers 2k-51552343 is a prime.

It is a super-3 number, since 3×515523433 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51552323) by changing a digit.

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, 1305 + ... + 10237.

It is an arithmetic number, because the mean of its divisors is an integer number (6700500).

Almost surely, 251552343 is an apocalyptic number.

51552343 is a deficient number, since it is larger than the sum of its proper divisors (2051657).

51552343 is a wasteful number, since it uses less digits than its factorization.

51552343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9161.

The product of its digits is 9000, while the sum is 28.

The square root of 51552343 is about 7179.9960306396. The cubic root of 51552343 is about 372.1769473641.

Adding to 51552343 its reverse (34325515), we get a palindrome (85877858).

The spelling of 51552343 in words is "fifty-one million, five hundred fifty-two thousand, three hundred forty-three".

Divisors: 1 29 199 5771 8933 259057 1777667 51552343