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148897 = 789239
BaseRepresentation
bin100100010110100001
321120020201
4210112201
514231042
63105201
71160050
oct442641
9246221
10148897
11a1961
1272201
1352a08
143c397
152e1b7
hex245a1

148897 has 8 divisors (see below), whose sum is σ = 172800. Its totient is φ = 125664.

The previous prime is 148891. The next prime is 148913. The reversal of 148897 is 798841.

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

It is not a de Polignac number, because 148897 - 211 = 146849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504 + ... + 742.

It is an arithmetic number, because the mean of its divisors is an integer number (21600).

2148897 is an apocalyptic number.

It is an amenable number.

148897 is a deficient number, since it is larger than the sum of its proper divisors (23903).

148897 is an equidigital number, since it uses as much as digits as its factorization.

148897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335.

The product of its digits is 16128, while the sum is 37.

The square root of 148897 is about 385.8717403490. The cubic root of 148897 is about 53.0023732176.

Adding to 148897 its product of digits (16128), we get a triangular number (165025 = T574).

It can be divided in two parts, 14 and 8897, that added together give a triangular number (8911 = T133).

The spelling of 148897 in words is "one hundred forty-eight thousand, eight hundred ninety-seven".

Divisors: 1 7 89 239 623 1673 21271 148897