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51103264 = 254337139
BaseRepresentation
bin1100001011110…
…0011000100000
310120011022111111
43002330120200
5101040301024
65023153104
71160241052
oct302743040
9116138444
1051103264
1126934703
1215145794
13a783624
146b038d2
154746a94
hex30bc620

51103264 has 24 divisors (see below), whose sum is σ = 102952080. Its totient is φ = 24956736.

The previous prime is 51103259. The next prime is 51103277. The reversal of 51103264 is 46230115.

It is a super-2 number, since 2×511032642 = 5223087182907392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17194 + ... + 19945.

It is an arithmetic number, because the mean of its divisors is an integer number (4289670).

Almost surely, 251103264 is an apocalyptic number.

It is an amenable number.

51103264 is an abundant number, since it is smaller than the sum of its proper divisors (51848816).

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

51103264 is a wasteful number, since it uses less digits than its factorization.

51103264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37192 (or 37184 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 51103264 is about 7148.6546986129. The cubic root of 51103264 is about 371.0931005346.

Adding to 51103264 its reverse (46230115), we get a palindrome (97333379).

The spelling of 51103264 in words is "fifty-one million, one hundred three thousand, two hundred sixty-four".

Divisors: 1 2 4 8 16 32 43 86 172 344 688 1376 37139 74278 148556 297112 594224 1188448 1596977 3193954 6387908 12775816 25551632 51103264