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148209429427 = 178718201731
BaseRepresentation
bin1000101000000111111…
…0000110101110110011
3112011112222012002210221
42022001332012232303
54412013103220202
6152030402233511
713464524235613
oct2120176065663
9464488162727
10148209429427
11579453a4a64
1224883055897
1310c8c611347
14725da50a43
153cc67da037
hex2281f86bb3

148209429427 has 4 divisors (see below), whose sum is σ = 156927631176. Its totient is φ = 139491227680.

The previous prime is 148209429349. The next prime is 148209429469. The reversal of 148209429427 is 724924902841.

148209429427 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, and also an emirpimes, since its reverse is a distinct semiprime: 724924902841 = 4715423934103.

It is a cyclic number.

It is not a de Polignac number, because 148209429427 - 219 = 148208905139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148209429127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4359100849 + ... + 4359100882.

It is an arithmetic number, because the mean of its divisors is an integer number (39231907794).

Almost surely, 2148209429427 is an apocalyptic number.

148209429427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

148209429427 is a deficient number, since it is larger than the sum of its proper divisors (8718201749).

148209429427 is an equidigital number, since it uses as much as digits as its factorization.

148209429427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718201748.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 148209429427 in words is "one hundred forty-eight billion, two hundred nine million, four hundred twenty-nine thousand, four hundred twenty-seven".

Divisors: 1 17 8718201731 148209429427