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149280480 = 25325831249
BaseRepresentation
bin10001110010111…
…01011011100000
3101101220020022200
420321131123200
5301203433410
622451333200
73461602026
oct1071353340
9341806280
10149280480
11772a06a8
1241bb1200
1324c0955b
1415b7c716
15d18b3c0
hex8e5d6e0

149280480 has 144 divisors (see below), whose sum is σ = 515970000. Its totient is φ = 39297024.

The previous prime is 149280479. The next prime is 149280497. The reversal of 149280480 is 84082941.

149280480 is a `hidden beast` number, since 14 + 92 + 80 + 480 = 666.

149280480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118896 + ... + 120144.

It is an arithmetic number, because the mean of its divisors is an integer number (3583125).

Almost surely, 2149280480 is an apocalyptic number.

149280480 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 149280480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257985000).

149280480 is an abundant number, since it is smaller than the sum of its proper divisors (366689520).

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

149280480 is a wasteful number, since it uses less digits than its factorization.

149280480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 149280480 is about 12218.0391225434. The cubic root of 149280480 is about 530.4783624657.

The spelling of 149280480 in words is "one hundred forty-nine million, two hundred eighty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 83 90 96 120 144 160 166 180 240 249 288 332 360 415 480 498 664 720 747 830 996 1245 1249 1328 1440 1494 1660 1992 2490 2498 2656 2988 3320 3735 3747 3984 4980 4996 5976 6245 6640 7470 7494 7968 9960 9992 11241 11952 12490 13280 14940 14988 18735 19920 19984 22482 23904 24980 29880 29976 37470 39840 39968 44964 49960 56205 59760 59952 74940 89928 99920 103667 112410 119520 119904 149880 179856 199840 207334 224820 299760 311001 359712 414668 449640 518335 599520 622002 829336 899280 933003 1036670 1244004 1555005 1658672 1798560 1866006 2073340 2488008 3110010 3317344 3732012 4146680 4665015 4976016 6220020 7464024 8293360 9330030 9952032 12440040 14928048 16586720 18660060 24880080 29856096 37320120 49760160 74640240 149280480