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51270352 = 2472291999
BaseRepresentation
bin1100001110010…
…1001011010000
310120110210200221
43003211023100
5101111122402
65030522424
71161535150
oct303451320
9116423627
1051270352
1126a391a1
1215206414
13a8116b3
146b48760
15477b337
hex30e52d0

51270352 has 40 divisors (see below), whose sum is σ = 114080000. Its totient is φ = 21866112.

The previous prime is 51270301. The next prime is 51270353. The reversal of 51270352 is 25307215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51270353) 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, 24649 + ... + 26647.

It is an arithmetic number, because the mean of its divisors is an integer number (2852000).

Almost surely, 251270352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51270352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57040000).

51270352 is an abundant number, since it is smaller than the sum of its proper divisors (62809648).

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

51270352 is a wasteful number, since it uses less digits than its factorization.

51270352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 51270352 is about 7160.3318358858. The cubic root of 51270352 is about 371.4971044011.

Adding to 51270352 its reverse (25307215), we get a palindrome (76577567).

The spelling of 51270352 in words is "fifty-one million, two hundred seventy thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 229 458 916 1603 1832 1999 3206 3664 3998 6412 7996 12824 13993 15992 25648 27986 31984 55972 111944 223888 457771 915542 1831084 3204397 3662168 6408794 7324336 12817588 25635176 51270352