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148706233 = 1311438941
BaseRepresentation
bin10001101110100…
…01001110111001
3101100211001121021
420313101032321
5301032044413
622431142441
73453660604
oct1067211671
9340731537
10148706233
1176a39215
1241974a21
1324a68070
1415a6d33b
15d0c618d
hex8dd13b9

148706233 has 4 divisors (see below), whose sum is σ = 160145188. Its totient is φ = 137267280.

The previous prime is 148706213. The next prime is 148706237. The reversal of 148706233 is 332607841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332607841 = 3167105023.

It can be written as a sum of positive squares in 2 ways, for example, as 51151104 + 97555129 = 7152^2 + 9877^2 .

It is a cyclic number.

It is not a de Polignac number, because 148706233 - 225 = 115151801 is a prime.

It is a super-2 number, since 2×1487062332 = 44227087466100578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148706237) 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, 5719458 + ... + 5719483.

It is an arithmetic number, because the mean of its divisors is an integer number (40036297).

Almost surely, 2148706233 is an apocalyptic number.

148706233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

148706233 is a deficient number, since it is larger than the sum of its proper divisors (11438955).

148706233 is a wasteful number, since it uses less digits than its factorization.

148706233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11438954.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 148706233 is about 12194.5165135810. The cubic root of 148706233 is about 529.7972797751.

The spelling of 148706233 in words is "one hundred forty-eight million, seven hundred six thousand, two hundred thirty-three".

Divisors: 1 13 11438941 148706233