Search a number
-
+
244430140 = 22537330311
BaseRepresentation
bin11101001000110…
…11010100111100
3122000221100010011
432210123110330
51000033231030
640130553004
76025423213
oct1644332474
9560840104
10244430140
11115a79a89
1269a38764
133b842426
142466a07a
15166d3b2a
hexe91b53c

244430140 has 24 divisors (see below), whose sum is σ = 527177952. Its totient is φ = 95129280.

The previous prime is 244430129. The next prime is 244430159. The reversal of 244430140 is 41034442.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164416 + ... + 165895.

It is an arithmetic number, because the mean of its divisors is an integer number (21965748).

Almost surely, 2244430140 is an apocalyptic number.

244430140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244430140 is an abundant number, since it is smaller than the sum of its proper divisors (282747812).

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

244430140 is a wasteful number, since it uses less digits than its factorization.

244430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330357 (or 330355 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 244430140 is about 15634.2617350484. The cubic root of 244430140 is about 625.2469552081.

Adding to 244430140 its reverse (41034442), we get a palindrome (285464582).

The spelling of 244430140 in words is "two hundred forty-four million, four hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 330311 660622 1321244 1651555 3303110 6606220 12221507 24443014 48886028 61107535 122215070 244430140