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54821201 = 127431663
BaseRepresentation
bin1101000100100…
…0000101010001
310211011012112212
43101020011101
5103013234301
65235001505
71233654401
oct321100521
9124135485
1054821201
1128a43a86
1216439295
13b4859a6
1473d0801
154c2d4bb
hex3448151

54821201 has 4 divisors (see below), whose sum is σ = 55252992. Its totient is φ = 54389412.

The previous prime is 54821191. The next prime is 54821227. The reversal of 54821201 is 10212845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54821201 - 210 = 54820177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54821231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215705 + ... + 215958.

It is an arithmetic number, because the mean of its divisors is an integer number (13813248).

Almost surely, 254821201 is an apocalyptic number.

It is an amenable number.

54821201 is a deficient number, since it is larger than the sum of its proper divisors (431791).

54821201 is a wasteful number, since it uses less digits than its factorization.

54821201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431790.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 54821201 is about 7404.1340479492. The cubic root of 54821201 is about 379.8826992517.

The spelling of 54821201 in words is "fifty-four million, eight hundred twenty-one thousand, two hundred one".

Divisors: 1 127 431663 54821201