Search a number
-
+
68054555 = 525575323
BaseRepresentation
bin1000000111001…
…10111000011011
311202001112022002
410003212320123
5114410221210
610430351215
71454311532
oct403467033
9152045262
1068054555
1135462438
121a95b50b
131113a18a
149077319
155e944a5
hex40e6e1b

68054555 has 8 divisors (see below), whose sum is σ = 81712752. Its totient is φ = 54412128.

The previous prime is 68054549. The next prime is 68054563. The reversal of 68054555 is 55545086.

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 68054555 - 212 = 68050459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 10124 + ... + 15446.

It is an arithmetic number, because the mean of its divisors is an integer number (10214094).

Almost surely, 268054555 is an apocalyptic number.

68054555 is a deficient number, since it is larger than the sum of its proper divisors (13658197).

68054555 is a wasteful number, since it uses less digits than its factorization.

68054555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7885.

The product of its (nonzero) digits is 120000, while the sum is 38.

The square root of 68054555 is about 8249.5184707957. The cubic root of 68054555 is about 408.2746352758.

The spelling of 68054555 in words is "sixty-eight million, fifty-four thousand, five hundred fifty-five".

Divisors: 1 5 2557 5323 12785 26615 13610911 68054555