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148438 = 274219
BaseRepresentation
bin100100001111010110
321112121201
4210033112
514222223
63103114
71155523
oct441726
9245551
10148438
11a1584
1271a9a
1352744
143c14a
152dead
hex243d6

148438 has 4 divisors (see below), whose sum is σ = 222660. Its totient is φ = 74218.

The previous prime is 148429. The next prime is 148439. The reversal of 148438 is 834841.

148438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37108 + ... + 37111.

It is an arithmetic number, because the mean of its divisors is an integer number (55665).

2148438 is an apocalyptic number.

148438 is a deficient number, since it is larger than the sum of its proper divisors (74222).

148438 is an equidigital number, since it uses as much as digits as its factorization.

148438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74221.

The product of its digits is 3072, while the sum is 28.

The square root of 148438 is about 385.2765240707. The cubic root of 148438 is about 52.9478542533.

The spelling of 148438 in words is "one hundred forty-eight thousand, four hundred thirty-eight".

Divisors: 1 2 74219 148438