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51300472 = 2313746807
BaseRepresentation
bin1100001110110…
…0100001111000
310120112100000111
43003230201320
5101113103342
65031314104
71162022026
oct303544170
9116470014
1051300472
1126a59893
121521b934
13a822312
146b55716
154785217
hex30ec878

51300472 has 16 divisors (see below), whose sum is σ = 96892560. Its totient is φ = 25462464.

The previous prime is 51300439. The next prime is 51300479. The reversal of 51300472 is 27400315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51300479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22308 + ... + 24499.

It is an arithmetic number, because the mean of its divisors is an integer number (6055785).

Almost surely, 251300472 is an apocalyptic number.

It is an amenable number.

51300472 is a deficient number, since it is larger than the sum of its proper divisors (45592088).

51300472 is a wasteful number, since it uses less digits than its factorization.

51300472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46950 (or 46946 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 51300472 is about 7162.4347815530. The cubic root of 51300472 is about 371.5698384595.

Adding to 51300472 its reverse (27400315), we get a palindrome (78700787).

The spelling of 51300472 in words is "fifty-one million, three hundred thousand, four hundred seventy-two".

Divisors: 1 2 4 8 137 274 548 1096 46807 93614 187228 374456 6412559 12825118 25650236 51300472