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144511241231 = 720644463033
BaseRepresentation
bin1000011010010110001…
…0101000110000001111
3111211000020101200022202
42012211202220300033
54331424334204411
6150215413232115
713304060166050
oct2064542506017
9454006350282
10144511241231
1156317912485
122401063263b
13108203a32c6
146dcc822727
153b5bcd083b
hex21a58a8c0f

144511241231 has 4 divisors (see below), whose sum is σ = 165155704272. Its totient is φ = 123866778192.

The previous prime is 144511241227. The next prime is 144511241239. The reversal of 144511241231 is 132142115441.

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

It is a cyclic number.

It is not a de Polignac number, because 144511241231 - 22 = 144511241227 is a prime.

It is a super-2 number, since 2×1445112412312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144511241194 and 144511241203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144511241239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10322231510 + ... + 10322231523.

It is an arithmetic number, because the mean of its divisors is an integer number (41288926068).

Almost surely, 2144511241231 is an apocalyptic number.

144511241231 is a deficient number, since it is larger than the sum of its proper divisors (20644463041).

144511241231 is an equidigital number, since it uses as much as digits as its factorization.

144511241231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20644463040.

The product of its digits is 3840, while the sum is 29.

Adding to 144511241231 its reverse (132142115441), we get a palindrome (276653356672).

The spelling of 144511241231 in words is "one hundred forty-four billion, five hundred eleven million, two hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 7 20644463033 144511241231