Search a number
-
+
148567081 = 1311428237
BaseRepresentation
bin10001101101011…
…11010000101001
3101100112222201111
420312233100221
5301013121311
622424150321
73452541115
oct1066572051
9340488644
10148567081
1176953713
12419083a1
1324a19920
1415a34745
15d099d21
hex8daf429

148567081 has 4 divisors (see below), whose sum is σ = 159995332. Its totient is φ = 137138832.

The previous prime is 148567049. The next prime is 148567103. The reversal of 148567081 is 180765841.

148567081 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 can be written as a sum of positive squares in 2 ways, for example, as 37454400 + 111112681 = 6120^2 + 10541^2 .

It is a cyclic number.

It is not a de Polignac number, because 148567081 - 25 = 148567049 is a prime.

It is a super-2 number, since 2×1485670812 = 44144355113721122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148567031) 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, 5714106 + ... + 5714131.

It is an arithmetic number, because the mean of its divisors is an integer number (39998833).

Almost surely, 2148567081 is an apocalyptic number.

It is an amenable number.

148567081 is a deficient number, since it is larger than the sum of its proper divisors (11428251).

148567081 is a wasteful number, since it uses less digits than its factorization.

148567081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428250.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 148567081 is about 12188.8096629655. The cubic root of 148567081 is about 529.6319754325.

The spelling of 148567081 in words is "one hundred forty-eight million, five hundred sixty-seven thousand, eighty-one".

Divisors: 1 13 11428237 148567081