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144813451 = 2361103217
BaseRepresentation
bin10001010000110…
…10110110001011
3101002111021201011
420220122312023
5244033012301
622211504351
73405615436
oct1050326613
9332437634
10144813451
117481a542
12405b80b7
1324004243
141533881d
15caa7a51
hex8a1ad8b

144813451 has 8 divisors (see below), whose sum is σ = 153588384. Its totient is φ = 136245120.

The previous prime is 144813433. The next prime is 144813491. The reversal of 144813451 is 154318441.

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 144813451 - 213 = 144805259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144813491) 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, 50206 + ... + 53011.

It is an arithmetic number, because the mean of its divisors is an integer number (19198548).

Almost surely, 2144813451 is an apocalyptic number.

144813451 is a deficient number, since it is larger than the sum of its proper divisors (8774933).

144813451 is a wasteful number, since it uses less digits than its factorization.

144813451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103301.

The product of its digits is 7680, while the sum is 31.

The square root of 144813451 is about 12033.8460601754. The cubic root of 144813451 is about 525.1333913509.

The spelling of 144813451 in words is "one hundred forty-four million, eight hundred thirteen thousand, four hundred fifty-one".

Divisors: 1 23 61 1403 103217 2373991 6296237 144813451