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145454241 = 3101480047
BaseRepresentation
bin10001010101101…
…11010010100001
3101010200211201010
420222313102201
5244214013431
622233331133
73414224562
oct1052672241
9333624633
10145454241
1175117a19
1240866aa9
1324199aca
1415464169
15cb82846
hex8ab74a1

145454241 has 8 divisors (see below), whose sum is σ = 195859584. Its totient is φ = 96009200.

The previous prime is 145454209. The next prime is 145454269. The reversal of 145454241 is 142454541.

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

It is a cyclic number.

It is not a de Polignac number, because 145454241 - 25 = 145454209 is a prime.

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 145454199 and 145454208.

It is not an unprimeable number, because it can be changed into a prime (145454041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239721 + ... + 240326.

It is an arithmetic number, because the mean of its divisors is an integer number (24482448).

Almost surely, 2145454241 is an apocalyptic number.

It is an amenable number.

145454241 is a deficient number, since it is larger than the sum of its proper divisors (50405343).

145454241 is a wasteful number, since it uses less digits than its factorization.

145454241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480151.

The product of its digits is 12800, while the sum is 30.

The square root of 145454241 is about 12060.4411610853. The cubic root of 145454241 is about 525.9068119358.

The spelling of 145454241 in words is "one hundred forty-five million, four hundred fifty-four thousand, two hundred forty-one".

Divisors: 1 3 101 303 480047 1440141 48484747 145454241