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51554201 = 1923117973
BaseRepresentation
bin1100010010101…
…0011110011001
310121000020001212
43010222132121
5101144213301
65040552505
71164126536
oct304523631
9117006055
1051554201
1127112486
1215322735
13a8b095a
146bbdd8d
1547d54bb
hex312a799

51554201 has 8 divisors (see below), whose sum is σ = 56627520. Its totient is φ = 46716912.

The previous prime is 51554189. The next prime is 51554207. The reversal of 51554201 is 10245515.

It is a happy number.

51554201 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 a cyclic number.

It is not a de Polignac number, because 51554201 - 214 = 51537817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51554207) 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, 58550 + ... + 59423.

It is an arithmetic number, because the mean of its divisors is an integer number (7078440).

Almost surely, 251554201 is an apocalyptic number.

It is an amenable number.

51554201 is a deficient number, since it is larger than the sum of its proper divisors (5073319).

51554201 is a wasteful number, since it uses less digits than its factorization.

51554201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118015.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 51554201 is about 7180.1254167319. The cubic root of 51554201 is about 372.1814185250.

Adding to 51554201 its reverse (10245515), we get a palindrome (61799716).

The spelling of 51554201 in words is "fifty-one million, five hundred fifty-four thousand, two hundred one".

Divisors: 1 19 23 437 117973 2241487 2713379 51554201