Search a number
-
+
144831128 = 23131392607
BaseRepresentation
bin10001010000111…
…11001010011000
3101002112011221212
420220133022120
5244034044003
622212122252
73406021121
oct1050371230
9332464855
10144831128
1174831852
1240606388
132400c2c0
1415341048
15caacdd8
hex8a1f298

144831128 has 16 divisors (see below), whose sum is σ = 292447680. Its totient is φ = 66845088.

The previous prime is 144831079. The next prime is 144831131. The reversal of 144831128 is 821138441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 144831094 and 144831103.

It is a congruent number.

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, 696200 + ... + 696407.

It is an arithmetic number, because the mean of its divisors is an integer number (18277980).

Almost surely, 2144831128 is an apocalyptic number.

It is an amenable number.

144831128 is an abundant number, since it is smaller than the sum of its proper divisors (147616552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144831128 is a wasteful number, since it uses less digits than its factorization.

144831128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392626 (or 1392622 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 144831128 is about 12034.5805078532. The cubic root of 144831128 is about 525.1547577023.

Adding to 144831128 its reverse (821138441), we get a palindrome (965969569).

The spelling of 144831128 in words is "one hundred forty-four million, eight hundred thirty-one thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 13 26 52 104 1392607 2785214 5570428 11140856 18103891 36207782 72415564 144831128