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144054505 = 5737173643
BaseRepresentation
bin10001001011000…
…01100011101001
3101001001201122001
420211201203221
5243334221010
622143331001
73366304660
oct1045414351
9331051561
10144054505
1174351311
12402b0a61
1323ac996a
14151bbdd7
15c9a7c3a
hex89618e9

144054505 has 32 divisors (see below), whose sum is σ = 204390144. Its totient is φ = 95406336.

The previous prime is 144054503. The next prime is 144054517. The reversal of 144054505 is 505450441.

It is a cyclic number.

It is not a de Polignac number, because 144054505 - 21 = 144054503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144054503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223714 + ... + 224356.

It is an arithmetic number, because the mean of its divisors is an integer number (6387192).

Almost surely, 2144054505 is an apocalyptic number.

It is an amenable number.

144054505 is a deficient number, since it is larger than the sum of its proper divisors (60335639).

144054505 is a wasteful number, since it uses less digits than its factorization.

144054505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 144054505 is about 12002.2708268061. The cubic root of 144054505 is about 524.2144017543.

It can be divided in two parts, 1440 and 54505, that added together give a triangular number (55945 = T334).

The spelling of 144054505 in words is "one hundred forty-four million, fifty-four thousand, five hundred five".

Divisors: 1 5 7 35 37 173 185 259 643 865 1211 1295 3215 4501 6055 6401 22505 23791 32005 44807 111239 118955 166537 224035 556195 778673 832685 3893365 4115843 20579215 28810901 144054505