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144028858 = 2123758217
BaseRepresentation
bin10001001010110…
…11010010111010
3101001000102110011
420211123102322
5243332410413
622143012134
73366140131
oct1045332272
9331012404
10144028858
1174334016
124029a04a
1323abb09c
14151b2918
15c9a033d
hex895b4ba

144028858 has 8 divisors (see below), whose sum is σ = 216221652. Its totient is φ = 71954976.

The previous prime is 144028849. The next prime is 144028861. The reversal of 144028858 is 858820441.

144028858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 137992009 + 6036849 = 11747^2 + 2457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1440288583 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144028858.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26635 + ... + 31582.

Almost surely, 2144028858 is an apocalyptic number.

144028858 is a deficient number, since it is larger than the sum of its proper divisors (72192794).

144028858 is a wasteful number, since it uses less digits than its factorization.

144028858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59456.

The product of its (nonzero) digits is 81920, while the sum is 40.

The square root of 144028858 is about 12001.2023564308. The cubic root of 144028858 is about 524.1832900934.

The spelling of 144028858 in words is "one hundred forty-four million, twenty-eight thousand, eight hundred fifty-eight".

Divisors: 1 2 1237 2474 58217 116434 72014429 144028858