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55030717 = 717462443
BaseRepresentation
bin1101000111101…
…1001110111101
310211112211221201
43101323032331
5103041440332
65243255501
71235516260
oct321731675
9124484851
1055030717
1129077435
121651a591
13b52a171
147446cd7
154c705e7
hex347b3bd

55030717 has 8 divisors (see below), whose sum is σ = 66591936. Its totient is φ = 44394432.

The previous prime is 55030711. The next prime is 55030727. The reversal of 55030717 is 71703055.

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 55030717 - 23 = 55030709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55030711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231103 + ... + 231340.

It is an arithmetic number, because the mean of its divisors is an integer number (8323992).

Almost surely, 255030717 is an apocalyptic number.

It is an amenable number.

55030717 is a deficient number, since it is larger than the sum of its proper divisors (11561219).

55030717 is a wasteful number, since it uses less digits than its factorization.

55030717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462467.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 55030717 is about 7418.2691377437. The cubic root of 55030717 is about 380.3660300463.

The spelling of 55030717 in words is "fifty-five million, thirty thousand, seven hundred seventeen".

Divisors: 1 7 17 119 462443 3237101 7861531 55030717