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144248294 = 272124147
BaseRepresentation
bin10001001100100…
…00110111100110
3101001102120110102
420212100313212
5243411421134
622151424102
73401042651
oct1046206746
9331376412
10144248294
1174473973
1240385032
1323b66c28
141522c898
15c9e537e
hex8990de6

144248294 has 4 divisors (see below), whose sum is σ = 216372444. Its totient is φ = 72124146.

The previous prime is 144248287. The next prime is 144248329. The reversal of 144248294 is 492842441.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36062072 + ... + 36062075.

It is an arithmetic number, because the mean of its divisors is an integer number (54093111).

Almost surely, 2144248294 is an apocalyptic number.

144248294 is a deficient number, since it is larger than the sum of its proper divisors (72124150).

144248294 is an equidigital number, since it uses as much as digits as its factorization.

144248294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72124149.

The product of its digits is 73728, while the sum is 38.

The square root of 144248294 is about 12010.3411275450. The cubic root of 144248294 is about 524.4493625087.

The spelling of 144248294 in words is "one hundred forty-four million, two hundred forty-eight thousand, two hundred ninety-four".

Divisors: 1 2 72124147 144248294