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144194450401 = 828891739609
BaseRepresentation
bin1000011001001010101…
…0001011001111100001
3111210012011022001000001
42012102222023033201
54330302234403101
6150124135300001
713263162414451
oct2062252131741
9453164261001
10144194450401
115617500a881
1223b4251a601
131079c876a01
146d9c71bd61
153b3e0a6901
hex2192a8b3e1

144194450401 has 4 divisors (see below), whose sum is σ = 144196272900. Its totient is φ = 144192627904.

The previous prime is 144194450317. The next prime is 144194450461. The reversal of 144194450401 is 104054491441.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82728140625 + 61466309776 = 287625^2 + 247924^2 .

It is a cyclic number.

It is not a de Polignac number, because 144194450401 - 225 = 144160895969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144194450461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786916 + ... + 952693.

It is an arithmetic number, because the mean of its divisors is an integer number (36049068225).

Almost surely, 2144194450401 is an apocalyptic number.

It is an amenable number.

144194450401 is a deficient number, since it is larger than the sum of its proper divisors (1822499).

144194450401 is an equidigital number, since it uses as much as digits as its factorization.

144194450401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822498.

The product of its (nonzero) digits is 46080, while the sum is 37.

It can be divided in two parts, 144194 and 450401, that added together give a triangular number (594595 = T1090).

The spelling of 144194450401 in words is "one hundred forty-four billion, one hundred ninety-four million, four hundred fifty thousand, four hundred one".

Divisors: 1 82889 1739609 144194450401