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144129023 = 373895379
BaseRepresentation
bin10001001011100…
…11101111111111
3101001012111211222
420211303233333
5243344112043
622145103555
73400035143
oct1045635777
9331174758
10144129023
11743a22a5
1240327bbb
1323b2485c
14151db223
15c9bed68
hex8973bff

144129023 has 4 divisors (see below), whose sum is σ = 148024440. Its totient is φ = 140233608.

The previous prime is 144128989. The next prime is 144129049. The reversal of 144129023 is 320921441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320921441 = 409784649.

It is a cyclic number.

It is not a de Polignac number, because 144129023 - 212 = 144124927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144128983 and 144129001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144129053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1947653 + ... + 1947726.

It is an arithmetic number, because the mean of its divisors is an integer number (37006110).

Almost surely, 2144129023 is an apocalyptic number.

144129023 is a deficient number, since it is larger than the sum of its proper divisors (3895417).

144129023 is an equidigital number, since it uses as much as digits as its factorization.

144129023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3895416.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 144129023 is about 12005.3747546672. The cubic root of 144129023 is about 524.3047765168.

The spelling of 144129023 in words is "one hundred forty-four million, one hundred twenty-nine thousand, twenty-three".

Divisors: 1 37 3895379 144129023