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148417 = 193769
BaseRepresentation
bin100100001111000001
321112120221
4210033001
514222132
63103041
71155463
oct441701
9245527
10148417
11a1565
1271a81
1352729
143c133
152de97
hex243c1

148417 has 4 divisors (see below), whose sum is σ = 149380. Its totient is φ = 147456.

The previous prime is 148411. The next prime is 148429. The reversal of 148417 is 714841.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 46656 + 101761 = 216^2 + 319^2 .

It is a 3-Lehmer number, since φ(148417) divides (148417-1)3.

It is a cyclic number.

It is not a de Polignac number, because 148417 - 211 = 146369 is a prime.

It is a deceptive number, since it divides R148416.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148391 and 148400.

It is not an unprimeable number, because it can be changed into a prime (148411) 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 3 ways as a sum of consecutive naturals, for example, 192 + ... + 577.

It is an arithmetic number, because the mean of its divisors is an integer number (37345).

2148417 is an apocalyptic number.

148417 is the 193-rd decagonal number.

It is an amenable number.

148417 is a deficient number, since it is larger than the sum of its proper divisors (963).

148417 is an equidigital number, since it uses as much as digits as its factorization.

148417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962.

The product of its digits is 896, while the sum is 25.

The square root of 148417 is about 385.2492699539. The cubic root of 148417 is about 52.9453572346.

It can be divided in two parts, 148 and 417, that multiplied together give a palindrome (61716).

The spelling of 148417 in words is "one hundred forty-eight thousand, four hundred seventeen".

Divisors: 1 193 769 148417