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148424 = 2318553
BaseRepresentation
bin100100001111001000
321112121012
4210033020
514222144
63103052
71155503
oct441710
9245535
10148424
11a1571
1271a88
1352733
143c13a
152de9e
hex243c8

148424 has 8 divisors (see below), whose sum is σ = 278310. Its totient is φ = 74208.

The previous prime is 148411. The next prime is 148429. The reversal of 148424 is 424841.

148424 = T99 + T100 + ... + T122.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 2500 = 382^2 + 50^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 148424.

It is not an unprimeable number, because it can be changed into a prime (148429) by changing a digit.

148424 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 9269 + ... + 9284.

2148424 is an apocalyptic number.

It is an amenable number.

148424 is a deficient number, since it is larger than the sum of its proper divisors (129886).

148424 is a wasteful number, since it uses less digits than its factorization.

148424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18559 (or 18555 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 148424 is about 385.2583548737. The cubic root of 148424 is about 52.9461896003.

The spelling of 148424 in words is "one hundred forty-eight thousand, four hundred twenty-four".

Divisors: 1 2 4 8 18553 37106 74212 148424