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144061823 = 413513703
BaseRepresentation
bin10001001011000…
…11010101111111
3101001002002200002
420211203111333
5243334434243
622143424515
73366335213
oct1045432577
9331062602
10144061823
1174356864
12402b513b
1323b000a9
14151c0943
15c9a9eb8
hex896357f

144061823 has 4 divisors (see below), whose sum is σ = 147575568. Its totient is φ = 140548080.

The previous prime is 144061817. The next prime is 144061829. The reversal of 144061823 is 328160441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328160441 = 746880063.

It is an interprime number because it is at equal distance from previous prime (144061817) and next prime (144061829).

It is a cyclic number.

It is not a de Polignac number, because 144061823 - 26 = 144061759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144061829) 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, 1756811 + ... + 1756892.

It is an arithmetic number, because the mean of its divisors is an integer number (36893892).

Almost surely, 2144061823 is an apocalyptic number.

144061823 is a deficient number, since it is larger than the sum of its proper divisors (3513745).

144061823 is an equidigital number, since it uses as much as digits as its factorization.

144061823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513744.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 144061823 is about 12002.5756819109. The cubic root of 144061823 is about 524.2232783390.

The spelling of 144061823 in words is "one hundred forty-four million, sixty-one thousand, eight hundred twenty-three".

Divisors: 1 41 3513703 144061823