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148505 = 574243
BaseRepresentation
bin100100010000011001
321112201012
4210100121
514223010
63103305
71155650
oct442031
9245635
10148505
11a1635
1271b35
1352796
143c197
152e005
hex24419

148505 has 8 divisors (see below), whose sum is σ = 203712. Its totient is φ = 101808.

The previous prime is 148501. The next prime is 148513. The reversal of 148505 is 505841.

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

It is not a de Polignac number, because 148505 - 22 = 148501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2087 + ... + 2156.

It is an arithmetic number, because the mean of its divisors is an integer number (25464).

2148505 is an apocalyptic number.

It is an amenable number.

148505 is a deficient number, since it is larger than the sum of its proper divisors (55207).

148505 is an equidigital number, since it uses as much as digits as its factorization.

148505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 148505 is about 385.3634647965. The cubic root of 148505 is about 52.9558193580.

The spelling of 148505 in words is "one hundred forty-eight thousand, five hundred five".

Divisors: 1 5 7 35 4243 21215 29701 148505