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144900855 = 325111991471
BaseRepresentation
bin10001010001100…
…00001011110111
3101002122201121100
420220300023313
5244043311410
622213421143
73406431321
oct1050601367
9332581540
10144900855
117487a180
124063a7b3
1324034c68
141535c611
15cac38c0
hex8a302f7

144900855 has 48 divisors (see below), whose sum is σ = 275558400. Its totient is φ = 69854400.

The previous prime is 144900829. The next prime is 144900857. The reversal of 144900855 is 558009441.

It is not a de Polignac number, because 144900855 - 25 = 144900823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144900857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97770 + ... + 99240.

It is an arithmetic number, because the mean of its divisors is an integer number (5740800).

Almost surely, 2144900855 is an apocalyptic number.

144900855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144900855 is a deficient number, since it is larger than the sum of its proper divisors (130657545).

144900855 is a wasteful number, since it uses less digits than its factorization.

144900855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 144900855 is about 12037.4771027820. The cubic root of 144900855 is about 525.2390204147.

The spelling of 144900855 in words is "one hundred forty-four million, nine hundred thousand, eight hundred fifty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 199 495 597 995 1471 1791 2189 2985 4413 6567 7355 8955 10945 13239 16181 19701 22065 32835 48543 66195 80905 98505 145629 242715 292729 728145 878187 1463645 2634561 3220019 4390935 9660057 13172805 16100095 28980171 48300285 144900855