Search a number
-
+
254324140 = 22571919511
BaseRepresentation
bin11110010100010…
…10110110101100
3122201120000010121
433022022312230
51010101333030
641123014324
76205501540
oct1712126654
9581500117
10254324140
11120617544
127120a3a4
13408c7975
1425ac3a20
15174da47a
hexf28adac

254324140 has 48 divisors (see below), whose sum is σ = 613638144. Its totient is φ = 86731200.

The previous prime is 254324129. The next prime is 254324149. The reversal of 254324140 is 41423452.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (254324149) 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, 21985 + ... + 31495.

It is an arithmetic number, because the mean of its divisors is an integer number (12784128).

Almost surely, 2254324140 is an apocalyptic number.

254324140 is a gapful number since it is divisible by the number (20) 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 254324140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306819072).

254324140 is an abundant number, since it is smaller than the sum of its proper divisors (359314004).

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

254324140 is a wasteful number, since it uses less digits than its factorization.

254324140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9718 (or 9716 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 254324140 is about 15947.5433844840. The cubic root of 254324140 is about 633.5718332280.

Adding to 254324140 its reverse (41423452), we get a palindrome (295747592).

The spelling of 254324140 in words is "two hundred fifty-four million, three hundred twenty-four thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 191 382 764 955 1337 1910 2674 3820 5348 6685 9511 13370 19022 26740 38044 47555 66577 95110 133154 190220 266308 332885 665770 1331540 1816601 3633202 7266404 9083005 12716207 18166010 25432414 36332020 50864828 63581035 127162070 254324140