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133485192 = 23332397277
BaseRepresentation
bin1111111010011…
…01001010001000
3100022011202021000
413331031022020
5233133011232
621125015000
73210414441
oct775151210
9308152230
10133485192
1169392445
1238854460
1321868c29
1413a2a2c8
15babb27c
hex7f4d288

133485192 has 128 divisors (see below), whose sum is σ = 392313600. Its totient is φ = 41969664.

The previous prime is 133485181. The next prime is 133485193. The reversal of 133485192 is 291584331.

133485192 is a `hidden beast` number, since 133 + 4 + 8 + 519 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (133485193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481758 + ... + 482034.

It is an arithmetic number, because the mean of its divisors is an integer number (3064950).

Almost surely, 2133485192 is an apocalyptic number.

133485192 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 133485192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196156800).

133485192 is an abundant number, since it is smaller than the sum of its proper divisors (258828408).

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

133485192 is a wasteful number, since it uses less digits than its factorization.

133485192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 402 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 133485192 is about 11553.5791856896. The cubic root of 133485192 is about 511.0668325571.

The spelling of 133485192 in words is "one hundred thirty-three million, four hundred eighty-five thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 23 24 27 36 46 54 69 72 92 97 108 138 184 194 207 216 276 277 291 388 414 552 554 582 621 776 828 831 873 1108 1164 1242 1656 1662 1746 2216 2231 2328 2484 2493 2619 3324 3492 4462 4968 4986 5238 6371 6648 6693 6984 7479 8924 9972 10476 12742 13386 14958 17848 19113 19944 20079 20952 25484 26772 26869 29916 38226 40158 50968 53544 53738 57339 59832 60237 76452 80316 80607 107476 114678 120474 152904 160632 161214 172017 214952 229356 240948 241821 322428 344034 458712 481896 483642 617987 644856 688068 725463 967284 1235974 1376136 1450926 1853961 1934568 2471948 2901852 3707922 4943896 5561883 5803704 7415844 11123766 14831688 16685649 22247532 33371298 44495064 66742596 133485192