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10133280 = 2532531227
BaseRepresentation
bin100110101001…
…111100100000
3201001211020200
4212221330200
510043231110
61001105200
7152063043
oct46517440
921054220
1010133280
1157a1313
123488200
13213a431
1414bac5a
15d526c0
hex9a9f20

10133280 has 144 divisors (see below), whose sum is σ = 35852544. Its totient is φ = 2603520.

The previous prime is 10133269. The next prime is 10133287. The reversal of 10133280 is 8233101.

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 (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10133287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44527 + ... + 44753.

It is an arithmetic number, because the mean of its divisors is an integer number (248976).

Almost surely, 210133280 is an apocalyptic number.

10133280 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 10133280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17926272).

10133280 is an abundant number, since it is smaller than the sum of its proper divisors (25719264).

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

10133280 is a wasteful number, since it uses less digits than its factorization.

10133280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 10133280 is about 3183.2813259277. The cubic root of 10133280 is about 216.3963914605.

Adding to 10133280 its reverse (8233101), we get a palindrome (18366381).

The spelling of 10133280 in words is "ten million, one hundred thirty-three thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 31 32 36 40 45 48 60 62 72 80 90 93 96 120 124 144 155 160 180 186 227 240 248 279 288 310 360 372 454 465 480 496 558 620 681 720 744 908 930 992 1116 1135 1240 1362 1395 1440 1488 1816 1860 2043 2232 2270 2480 2724 2790 2976 3405 3632 3720 4086 4464 4540 4960 5448 5580 6810 7037 7264 7440 8172 8928 9080 10215 10896 11160 13620 14074 14880 16344 18160 20430 21111 21792 22320 27240 28148 32688 35185 36320 40860 42222 44640 54480 56296 63333 65376 70370 81720 84444 105555 108960 112592 126666 140740 163440 168888 211110 225184 253332 281480 316665 326880 337776 422220 506664 562960 633330 675552 844440 1013328 1125920 1266660 1688880 2026656 2533320 3377760 5066640 10133280