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144020043 = 3223695749
BaseRepresentation
bin10001001010110…
…01001001001011
3101000222222100200
420211121021023
5243332120133
622142503243
73366102336
oct1045311113
9330888320
10144020043
1174328432
1240294b23
1323ab707b
14151ad61d
15c99c913
hex895924b

144020043 has 12 divisors (see below), whose sum is σ = 217074000. Its totient is φ = 91838736.

The previous prime is 144020033. The next prime is 144020099. The reversal of 144020043 is 340020441.

It is not a de Polignac number, because 144020043 - 26 = 144019979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144019998 and 144020025.

It is not an unprimeable number, because it can be changed into a prime (144020033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347668 + ... + 348081.

It is an arithmetic number, because the mean of its divisors is an integer number (18089500).

Almost surely, 2144020043 is an apocalyptic number.

144020043 is a deficient number, since it is larger than the sum of its proper divisors (73053957).

144020043 is a wasteful number, since it uses less digits than its factorization.

144020043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695778 (or 695775 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 144020043 is about 12000.8350959423. The cubic root of 144020043 is about 524.1725960098.

Adding to 144020043 its reverse (340020441), we get a palindrome (484040484).

The spelling of 144020043 in words is "one hundred forty-four million, twenty thousand, forty-three".

Divisors: 1 3 9 23 69 207 695749 2087247 6261741 16002227 48006681 144020043