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51492201 = 3171009651
BaseRepresentation
bin1100010001101…
…1010101101001
310120220002000120
43010123111221
5101140222301
65035353453
71163451015
oct304332551
9116802016
1051492201
112707a942
12152b2889
13a88b677
146ba5545
1547c1e36
hex311b569

51492201 has 8 divisors (see below), whose sum is σ = 72694944. Its totient is φ = 32308800.

The previous prime is 51492173. The next prime is 51492257. The reversal of 51492201 is 10229415.

51492201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51492201 - 29 = 51491689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51492281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504775 + ... + 504876.

It is an arithmetic number, because the mean of its divisors is an integer number (9086868).

Almost surely, 251492201 is an apocalyptic number.

51492201 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51492201 is a deficient number, since it is larger than the sum of its proper divisors (21202743).

51492201 is a wasteful number, since it uses less digits than its factorization.

51492201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009671.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 51492201 is about 7175.8066445522. The cubic root of 51492201 is about 372.0321613424.

The spelling of 51492201 in words is "fifty-one million, four hundred ninety-two thousand, two hundred one".

Divisors: 1 3 17 51 1009651 3028953 17164067 51492201