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133546752 = 28331392
BaseRepresentation
bin1111111010111…
…00001100000000
3100022021212201000
413331130030000
5233141444002
621130212000
73211062063
oct775341400
9308255630
10133546752
1169424719
1238884000
132188ac61
1413a448da
15bace61c
hex7f5c300

133546752 has 108 divisors (see below), whose sum is σ = 397782840. Its totient is φ = 44195328.

The previous prime is 133546739. The next prime is 133546759. The reversal of 133546752 is 257645331.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (108).

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

Its product of digits (75600) is a multiple of the sum of its prime divisors (144).

It is not an unprimeable number, because it can be changed into a prime (133546759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 960699 + ... + 960837.

Almost surely, 2133546752 is an apocalyptic number.

133546752 is a gapful number since it is divisible by the number (12) 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 133546752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198891420).

133546752 is an abundant number, since it is smaller than the sum of its proper divisors (264236088).

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

133546752 is an frugal number, since it uses more digits than its factorization.

133546752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 144 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 133546752 is about 11556.2429880995. The cubic root of 133546752 is about 511.1453841892.

The spelling of 133546752 in words is "one hundred thirty-three million, five hundred forty-six thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 139 144 192 216 256 278 288 384 417 432 556 576 768 834 864 1112 1152 1251 1668 1728 2224 2304 2502 3336 3456 3753 4448 5004 6672 6912 7506 8896 10008 13344 15012 17792 19321 20016 26688 30024 35584 38642 40032 53376 57963 60048 77284 80064 106752 115926 120096 154568 160128 173889 231852 240192 309136 320256 347778 463704 480384 521667 618272 695556 927408 960768 1043334 1236544 1391112 1854816 2086668 2473088 2782224 3709632 4173336 4946176 5564448 7419264 8346672 11128896 14838528 16693344 22257792 33386688 44515584 66773376 133546752