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51262064 = 247457697
BaseRepresentation
bin1100001110001…
…1001001110000
310120110101022222
43003203021300
5101110341224
65030420212
71161502040
oct303431160
9116411288
1051262064
1126a32a47
1215201668
13a80a9a9
146b45720
154778b5e
hex30e3270

51262064 has 20 divisors (see below), whose sum is σ = 113509104. Its totient is φ = 21969408.

The previous prime is 51262051. The next prime is 51262069. The reversal of 51262064 is 46026215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51262069) 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 3 ways as a sum of consecutive naturals, for example, 228737 + ... + 228960.

Almost surely, 251262064 is an apocalyptic number.

It is an amenable number.

51262064 is an abundant number, since it is smaller than the sum of its proper divisors (62247040).

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

51262064 is a wasteful number, since it uses less digits than its factorization.

51262064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457712 (or 457706 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51262064 is about 7159.7530683677. The cubic root of 51262064 is about 371.4770854636.

Adding to 51262064 its reverse (46026215), we get a palindrome (97288279).

The spelling of 51262064 in words is "fifty-one million, two hundred sixty-two thousand, sixty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 457697 915394 1830788 3203879 3661576 6407758 7323152 12815516 25631032 51262064