Search a number
-
+
148854181 = 7105120233
BaseRepresentation
bin10001101111101…
…01010110100101
3101101002120112211
420313311112211
5301101313211
622434243421
73455145130
oct1067652645
9341076484
10148854181
117702a393
1241a26571
1324aba4c8
1415aab217
15d104e21
hex8df55a5

148854181 has 8 divisors (see below), whose sum is σ = 170289344. Its totient is φ = 127461600.

The previous prime is 148854133. The next prime is 148854197. The reversal of 148854181 is 181458841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 148854181 - 27 = 148854053 is a prime.

It is a super-2 number, since 2×1488541812 = 44315134402361522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148854481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2760 + ... + 17473.

It is an arithmetic number, because the mean of its divisors is an integer number (21286168).

Almost surely, 2148854181 is an apocalyptic number.

It is an amenable number.

148854181 is a deficient number, since it is larger than the sum of its proper divisors (21435163).

148854181 is a wasteful number, since it uses less digits than its factorization.

148854181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21291.

The product of its digits is 40960, while the sum is 40.

The square root of 148854181 is about 12200.5811746818. The cubic root of 148854181 is about 529.9729201781.

The spelling of 148854181 in words is "one hundred forty-eight million, eight hundred fifty-four thousand, one hundred eighty-one".

Divisors: 1 7 1051 7357 20233 141631 21264883 148854181