Search a number
-
+
145168655 = 5162117911
BaseRepresentation
bin10001010011100…
…01100100001111
3101010011022221212
420221301210033
5244130344110
622223245035
73411625142
oct1051614417
9333138855
10145168655
1174a423a5
124074977b
13240c9b18
14153cc059
15cb27e05
hex8a7190f

145168655 has 8 divisors (see below), whose sum is σ = 174319584. Its totient is φ = 116056800.

The previous prime is 145168651. The next prime is 145168669. The reversal of 145168655 is 556861541.

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

It is not a de Polignac number, because 145168655 - 22 = 145168651 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 (145168651) 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, 851 + ... + 17060.

It is an arithmetic number, because the mean of its divisors is an integer number (21789948).

Almost surely, 2145168655 is an apocalyptic number.

145168655 is a deficient number, since it is larger than the sum of its proper divisors (29150929).

145168655 is a wasteful number, since it uses less digits than its factorization.

145168655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19537.

The product of its digits is 144000, while the sum is 41.

The square root of 145168655 is about 12048.5955613092. The cubic root of 145168655 is about 525.5623965721.

The spelling of 145168655 in words is "one hundred forty-five million, one hundred sixty-eight thousand, six hundred fifty-five".

Divisors: 1 5 1621 8105 17911 89555 29033731 145168655