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51424130 = 2543119591
BaseRepresentation
bin1100010000101…
…0101110000010
310120202121122102
43010022232002
5101131033010
65034110402
71163045402
oct304125602
9116677572
1051424130
112703378a
121527b402
13a8666a4
146b88802
1547abba5
hex310ab82

51424130 has 16 divisors (see below), whose sum is σ = 94716864. Its totient is φ = 20091120.

The previous prime is 51424123. The next prime is 51424141. The reversal of 51424130 is 3142415.

It is a super-2 number, since 2×514241302 = 5288882292513800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59366 + ... + 60225.

It is an arithmetic number, because the mean of its divisors is an integer number (5919804).

Almost surely, 251424130 is an apocalyptic number.

51424130 is a deficient number, since it is larger than the sum of its proper divisors (43292734).

51424130 is a wasteful number, since it uses less digits than its factorization.

51424130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119641.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 51424130 is about 7171.0619855081. The cubic root of 51424130 is about 371.8681509461.

Adding to 51424130 its reverse (3142415), we get a palindrome (54566545).

The spelling of 51424130 in words is "fifty-one million, four hundred twenty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 119591 239182 597955 1195910 5142413 10284826 25712065 51424130