Search a number
-
+
144669500 = 2253893251
BaseRepresentation
bin10001001111101…
…11101100111100
3101002012222020122
420213313230330
5244013411000
622204434112
73404445653
oct1047675474
9332188218
10144669500
1174731378
1240548938
1323c83871
14152dc19a
15ca7a085
hex89f7b3c

144669500 has 48 divisors (see below), whose sum is σ = 319606560. Its totient is φ = 57200000.

The previous prime is 144669463. The next prime is 144669521. The reversal of 144669500 is 5966441.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42875 + ... + 46125.

It is an arithmetic number, because the mean of its divisors is an integer number (6658470).

Almost surely, 2144669500 is an apocalyptic number.

144669500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144669500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159803280).

144669500 is an abundant number, since it is smaller than the sum of its proper divisors (174937060).

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

144669500 is a wasteful number, since it uses less digits than its factorization.

144669500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359 (or 3347 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 144669500 is about 12027.8634844265. The cubic root of 144669500 is about 524.9593316948.

The spelling of 144669500 in words is "one hundred forty-four million, six hundred sixty-nine thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 89 100 125 178 250 356 445 500 890 1780 2225 3251 4450 6502 8900 11125 13004 16255 22250 32510 44500 65020 81275 162550 289339 325100 406375 578678 812750 1157356 1446695 1625500 2893390 5786780 7233475 14466950 28933900 36167375 72334750 144669500