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144964210918 = 272482105459
BaseRepresentation
bin1000011100000010001…
…0100101000011100110
3111212011210201220220211
42013000202211003212
54333341314222133
6150332354050034
713321230314302
oct2070042450346
9455153656824
10144964210918
115652a57729a
122411827991a
131089319c8c7
147032a54d02
153b86958bcd
hex21c08a50e6

144964210918 has 4 divisors (see below), whose sum is σ = 217446316380. Its totient is φ = 72482105458.

The previous prime is 144964210861. The next prime is 144964210921. The reversal of 144964210918 is 819012469441.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36241052728 + ... + 36241052731.

It is an arithmetic number, because the mean of its divisors is an integer number (54361579095).

Almost surely, 2144964210918 is an apocalyptic number.

144964210918 is a deficient number, since it is larger than the sum of its proper divisors (72482105462).

144964210918 is an equidigital number, since it uses as much as digits as its factorization.

144964210918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72482105461.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 144964210918 in words is "one hundred forty-four billion, nine hundred sixty-four million, two hundred ten thousand, nine hundred eighteen".

Divisors: 1 2 72482105459 144964210918