Search a number
-
+
148540 = 22571061
BaseRepresentation
bin100100010000111100
321112202111
4210100330
514223130
63103404
71156030
oct442074
9245674
10148540
11a1667
1271b64
13527c2
143c1c0
152e02a
hex2443c

148540 has 24 divisors (see below), whose sum is σ = 356832. Its totient is φ = 50880.

The previous prime is 148537. The next prime is 148549. The reversal of 148540 is 45841.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148549) 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 7 ways as a sum of consecutive naturals, for example, 391 + ... + 670.

It is an arithmetic number, because the mean of its divisors is an integer number (14868).

2148540 is an apocalyptic number.

148540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148540 is an abundant number, since it is smaller than the sum of its proper divisors (208292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148540 is a wasteful number, since it uses less digits than its factorization.

148540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 148540 is about 385.4088737951. The cubic root of 148540 is about 52.9599792809.

The spelling of 148540 in words is "one hundred forty-eight thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1061 2122 4244 5305 7427 10610 14854 21220 29708 37135 74270 148540