Search a number
-
+
148379447 = 283524309
BaseRepresentation
bin10001101100000…
…01011100110111
3101100012110100002
420312001130313
5300441120242
622420141515
73451130066
oct1066013467
9340173302
10148379447
1176835747
124183789b
13249823b8
14159c61dd
15d05e432
hex8d81737

148379447 has 4 divisors (see below), whose sum is σ = 148904040. Its totient is φ = 147854856.

The previous prime is 148379419. The next prime is 148379449. The reversal of 148379447 is 744973841.

It is a happy number.

148379447 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 cyclic number.

It is not a de Polignac number, because 148379447 - 218 = 148117303 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 (148379449) 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, 261872 + ... + 262437.

It is an arithmetic number, because the mean of its divisors is an integer number (37226010).

Almost surely, 2148379447 is an apocalyptic number.

148379447 is a deficient number, since it is larger than the sum of its proper divisors (524593).

148379447 is an equidigital number, since it uses as much as digits as its factorization.

148379447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524592.

The product of its digits is 677376, while the sum is 47.

The square root of 148379447 is about 12181.1102531748. The cubic root of 148379447 is about 529.4089138338.

It can be divided in two parts, 1483794 and 47, that added together give a palindrome (1483841).

The spelling of 148379447 in words is "one hundred forty-eight million, three hundred seventy-nine thousand, four hundred forty-seven".

Divisors: 1 283 524309 148379447