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490011144 = 233729432339
BaseRepresentation
bin11101001101001…
…111101000001000
31021011001010220220
4131031033220020
52000420324034
6120342350040
715100011630
oct3515175010
91234033826
10490011144
11231664697
1211812b320
137a69862c
14491156c0
152d043749
hex1d34fa08

490011144 has 128 divisors (see below), whose sum is σ = 1482624000. Its totient is φ = 131975424.

The previous prime is 490011139. The next prime is 490011161. The reversal of 490011144 is 441110094.

It is a super-2 number, since 2×4900111442 = 480221842488377472, which contains 22 as substring.

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

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, 208327 + ... + 210665.

It is an arithmetic number, because the mean of its divisors is an integer number (11583000).

Almost surely, 2490011144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490011144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741312000).

490011144 is an abundant number, since it is smaller than the sum of its proper divisors (992612856).

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

490011144 is a wasteful number, since it uses less digits than its factorization.

490011144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427 (or 2423 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 490011144 is about 22136.1953370492. The cubic root of 490011144 is about 788.3794928873.

The spelling of 490011144 in words is "four hundred ninety million, eleven thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 29 42 43 56 58 84 86 87 116 129 168 172 174 203 232 258 301 344 348 406 516 602 609 696 812 903 1032 1204 1218 1247 1624 1806 2339 2408 2436 2494 3612 3741 4678 4872 4988 7017 7224 7482 8729 9356 9976 14034 14964 16373 17458 18712 26187 28068 29928 32746 34916 49119 52374 56136 65492 67831 69832 98238 100577 104748 130984 135662 196476 201154 203493 209496 271324 301731 392952 402308 406986 474817 542648 603462 704039 804616 813972 949634 1206924 1408078 1424451 1627944 1899268 2112117 2413848 2816156 2848902 2916733 3798536 4224234 5632312 5697804 5833466 8448468 8750199 11395608 11666932 16896936 17500398 20417131 23333864 35000796 40834262 61251393 70001592 81668524 122502786 163337048 245005572 490011144