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51430001 = 723319441
BaseRepresentation
bin1100010000110…
…0001001110001
310120202220200212
43010030021301
5101131230001
65034153505
71163101460
oct304141161
9116686625
1051430001
1127038137
1215282895
13a86926c
146b8a9d7
1547ad7bb
hex310c271

51430001 has 8 divisors (see below), whose sum is σ = 61332864. Its totient is φ = 42166080.

The previous prime is 51429991. The next prime is 51430003. The reversal of 51430001 is 10003415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51430001 - 214 = 51413617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51430003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159560 + ... + 159881.

It is an arithmetic number, because the mean of its divisors is an integer number (7666608).

Almost surely, 251430001 is an apocalyptic number.

It is an amenable number.

51430001 is a deficient number, since it is larger than the sum of its proper divisors (9902863).

51430001 is a wasteful number, since it uses less digits than its factorization.

51430001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319471.

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

The square root of 51430001 is about 7171.4713274195. The cubic root of 51430001 is about 371.8823022458.

Adding to 51430001 its reverse (10003415), we get a palindrome (61433416).

The spelling of 51430001 in words is "fifty-one million, four hundred thirty thousand, one".

Divisors: 1 7 23 161 319441 2236087 7347143 51430001