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51200530 = 25233143167
BaseRepresentation
bin1100001101010…
…0001000010010
310120100020220221
43003110020102
5101101404110
65025223254
71161124453
oct303241022
9116306827
1051200530
11269a0797
1215191b2a
13a7b8994
146b2b12a
1547657da
hex30d4212

51200530 has 64 divisors (see below), whose sum is σ = 102187008. Its totient is φ = 18406080.

The previous prime is 51200519. The next prime is 51200557. The reversal of 51200530 is 3500215.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306507 + ... + 306673.

It is an arithmetic number, because the mean of its divisors is an integer number (1596672).

Almost surely, 251200530 is an apocalyptic number.

51200530 is a deficient number, since it is larger than the sum of its proper divisors (50986478).

51200530 is a wasteful number, since it uses less digits than its factorization.

51200530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 51200530 is about 7155.4545627794. The cubic root of 51200530 is about 371.3283879565.

Adding to 51200530 its reverse (3500215), we get a palindrome (54700745).

The spelling of 51200530 in words is "fifty-one million, two hundred thousand, five hundred thirty".

Divisors: 1 2 5 10 23 31 43 46 62 86 115 155 167 215 230 310 334 430 713 835 989 1333 1426 1670 1978 2666 3565 3841 4945 5177 6665 7130 7181 7682 9890 10354 13330 14362 19205 25885 30659 35905 38410 51770 61318 71810 119071 153295 165163 222611 238142 306590 330326 445222 595355 825815 1113055 1190710 1651630 2226110 5120053 10240106 25600265 51200530