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148247 = 1113477
BaseRepresentation
bin100100001100010111
321112100122
4210030113
514220442
63102155
71155131
oct441427
9245318
10148247
11a1420
127195b
1352628
143c051
152ddd2
hex24317

148247 has 4 divisors (see below), whose sum is σ = 161736. Its totient is φ = 134760.

The previous prime is 148243. The next prime is 148249. The reversal of 148247 is 742841.

148247 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742841 = 1167531.

It is a cyclic number.

It is not a de Polignac number, because 148247 - 22 = 148243 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 (148243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6728 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (40434).

2148247 is an apocalyptic number.

148247 is a deficient number, since it is larger than the sum of its proper divisors (13489).

148247 is a wasteful number, since it uses less digits than its factorization.

148247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13488.

The product of its digits is 1792, while the sum is 26.

The square root of 148247 is about 385.0285703685. The cubic root of 148247 is about 52.9251345974.

The spelling of 148247 in words is "one hundred forty-eight thousand, two hundred forty-seven".

Divisors: 1 11 13477 148247