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144322030231 = 307470104333
BaseRepresentation
bin1000011001101001000…
…0110110101010010111
3111210112001100202121221
42012122100312222113
54331032414431411
6150144533551211
713266302005351
oct2063220665227
9453461322557
10144322030231
1156230029455
1223b791a5507
13107c0125a32
146db164c0d1
153b4a3a8071
hex219a436a97

144322030231 has 4 divisors (see below), whose sum is σ = 144792134872. Its totient is φ = 143851925592.

The previous prime is 144322030219. The next prime is 144322030241. The reversal of 144322030231 is 132030223441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132030223441 = 1131168409057.

It is a cyclic number.

It is not a de Polignac number, because 144322030231 - 223 = 144313641623 is a prime.

It is a super-2 number, since 2×1443220302312 (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 = 144322030196 and 144322030205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144322030241) 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, 235051860 + ... + 235052473.

It is an arithmetic number, because the mean of its divisors is an integer number (36198033718).

Almost surely, 2144322030231 is an apocalyptic number.

144322030231 is a deficient number, since it is larger than the sum of its proper divisors (470104641).

144322030231 is an equidigital number, since it uses as much as digits as its factorization.

144322030231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470104640.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 144322030231 its reverse (132030223441), we get a palindrome (276352253672).

The spelling of 144322030231 in words is "one hundred forty-four billion, three hundred twenty-two million, thirty thousand, two hundred thirty-one".

Divisors: 1 307 470104333 144322030231