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51100304 = 243193769
BaseRepresentation
bin1100001011101…
…1101010010000
310120011011102212
43002323222100
5101040202204
65023131252
71160226323
oct302735220
9116134385
1051100304
1126932462
1215143b28
13a782188
146b027ba
154745c6e
hex30bba90

51100304 has 10 divisors (see below), whose sum is σ = 99006870. Its totient is φ = 25550144.

The previous prime is 51100303. The next prime is 51100373. The reversal of 51100304 is 40300115.

It can be written as a sum of positive squares in only one way, i.e., 51093904 + 6400 = 7148^2 + 80^2 .

It is a super-2 number, since 2×511003042 = 5222482137784832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51100303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1596869 + ... + 1596900.

It is an arithmetic number, because the mean of its divisors is an integer number (9900687).

Almost surely, 251100304 is an apocalyptic number.

It is an amenable number.

51100304 is a deficient number, since it is larger than the sum of its proper divisors (47906566).

51100304 is a wasteful number, since it uses less digits than its factorization.

51100304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193777 (or 3193771 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 51100304 is about 7148.4476636540. The cubic root of 51100304 is about 371.0859355859.

Adding to 51100304 its reverse (40300115), we get a palindrome (91400419).

The spelling of 51100304 in words is "fifty-one million, one hundred thousand, three hundred four".

Divisors: 1 2 4 8 16 3193769 6387538 12775076 25550152 51100304