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144005470 = 25717121013
BaseRepresentation
bin10001001010101…
…01100101011110
3101000222020100221
420211111211132
5243331133340
622142311554
73366012010
oct1045254536
9330866327
10144005470
1174318494
12402885ba
1323ab054b
14151a81b0
15c99844a
hex895595e

144005470 has 32 divisors (see below), whose sum is σ = 313668288. Its totient is φ = 46468608.

The previous prime is 144005441. The next prime is 144005479. The reversal of 144005470 is 74500441.

144005470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144005479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59317 + ... + 61696.

It is an arithmetic number, because the mean of its divisors is an integer number (9802134).

Almost surely, 2144005470 is an apocalyptic number.

144005470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144005470 is an abundant number, since it is smaller than the sum of its proper divisors (169662818).

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

144005470 is a wasteful number, since it uses less digits than its factorization.

144005470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121044.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 144005470 is about 12000.2279145023. The cubic root of 144005470 is about 524.1549155427.

The spelling of 144005470 in words is "one hundred forty-four million, five thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 121013 242026 605065 847091 1210130 1694182 2057221 4114442 4235455 8470910 10286105 14400547 20572210 28801094 72002735 144005470