Search a number
-
+
431124144 = 2431123131271
BaseRepresentation
bin11001101100100…
…110111010110000
31010001020101010220
4121230212322300
51340331433034
6110440253040
713453331463
oct3154467260
91101211126
10431124144
112013a3a50
12100471180
136b41b159
14413872da
1527cb0749
hex19b26eb0

431124144 has 160 divisors (see below), whose sum is σ = 1282203648. Its totient is φ = 123552000.

The previous prime is 431124137. The next prime is 431124173. The reversal of 431124144 is 441421134.

It is a super-3 number, since 3×4311241443 (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

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, 1590729 + ... + 1590999.

Almost surely, 2431124144 is an apocalyptic number.

431124144 is a gapful number since it is divisible by the number (44) 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 431124144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641101824).

431124144 is an abundant number, since it is smaller than the sum of its proper divisors (851079504).

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

431124144 is a wasteful number, since it uses less digits than its factorization.

431124144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 441 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 431124144 is about 20763.5291797902. The cubic root of 431124144 is about 755.4414002979.

Adding to 431124144 its reverse (441421134), we get a palindrome (872545278).

The spelling of 431124144 in words is "four hundred thirty-one million, one hundred twenty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 23 24 33 44 46 48 66 69 88 92 131 132 138 176 184 253 262 264 271 276 368 393 506 524 528 542 552 759 786 813 1012 1048 1084 1104 1441 1518 1572 1626 2024 2096 2168 2882 2981 3013 3036 3144 3252 4048 4323 4336 5764 5962 6026 6072 6233 6288 6504 8646 8943 9039 11528 11924 12052 12144 12466 13008 17292 17886 18078 18699 23056 23848 24104 24932 33143 34584 35501 35772 36156 37398 47696 48208 49864 66286 68563 69168 71002 71544 72312 74796 99429 99728 106503 132572 137126 142004 143088 144624 149592 198858 205689 213006 265144 274252 284008 299184 390511 397716 411378 426012 530288 548504 568016 781022 795432 816523 822756 852024 1097008 1171533 1562044 1590864 1633046 1645512 1704048 2343066 2449569 3124088 3266092 3291024 4686132 4899138 6248176 6532184 8981753 9372264 9798276 13064368 17963506 18744528 19596552 26945259 35927012 39193104 53890518 71854024 107781036 143708048 215562072 431124144