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144545250 = 2353316217
BaseRepresentation
bin10001001110110…
…01010111100010
3101001222122210210
420213121113202
5244000422000
622202034550
73403420503
oct1047312742
9331878723
10144545250
1174656a93
12404a8a56
1323c3c145
14152a8baa
15ca53350
hex89d95e2

144545250 has 64 divisors (see below), whose sum is σ = 372483072. Its totient is φ = 37296000.

The previous prime is 144545249. The next prime is 144545263. The reversal of 144545250 is 52545441.

144545250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20142 + ... + 26358.

It is an arithmetic number, because the mean of its divisors is an integer number (5820048).

Almost surely, 2144545250 is an apocalyptic number.

144545250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144545250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186241536).

144545250 is an abundant number, since it is smaller than the sum of its proper divisors (227937822).

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

144545250 is a wasteful number, since it uses less digits than its factorization.

144545250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268 (or 6258 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 144545250 is about 12022.6972847194. The cubic root of 144545250 is about 524.8090008162.

The spelling of 144545250 in words is "one hundred forty-four million, five hundred forty-five thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 31 50 62 75 93 125 150 155 186 250 310 375 465 750 775 930 1550 2325 3875 4650 6217 7750 11625 12434 18651 23250 31085 37302 62170 93255 155425 186510 192727 310850 385454 466275 578181 777125 932550 963635 1156362 1554250 1927270 2331375 2890905 4662750 4818175 5781810 9636350 14454525 24090875 28909050 48181750 72272625 144545250