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148622 = 274311
BaseRepresentation
bin100100010010001110
321112212112
4210102032
514223442
63104022
71156205
oct442216
9245775
10148622
11a1731
1272012
1352856
143c23c
152e082
hex2448e

148622 has 4 divisors (see below), whose sum is σ = 222936. Its totient is φ = 74310.

The previous prime is 148609. The next prime is 148627. The reversal of 148622 is 226841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 226841 = 1911939.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148627) by changing a digit.

148622 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 37154 + ... + 37157.

It is an arithmetic number, because the mean of its divisors is an integer number (55734).

2148622 is an apocalyptic number.

148622 is a deficient number, since it is larger than the sum of its proper divisors (74314).

148622 is an equidigital number, since it uses as much as digits as its factorization.

148622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74313.

The product of its digits is 768, while the sum is 23.

The square root of 148622 is about 385.5152396469. The cubic root of 148622 is about 52.9697228280.

The spelling of 148622 in words is "one hundred forty-eight thousand, six hundred twenty-two".

Divisors: 1 2 74311 148622