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133071708 = 223711791823
BaseRepresentation
bin1111110111010…
…00001101011100
3100021101202001210
413323220031130
5233031243313
621112104420
73204043110
oct773501534
9307352053
10133071708
116912a820
1238695110
1321752973
141395d740
15ba389c3
hex7ee835c

133071708 has 96 divisors (see below), whose sum is σ = 392232960. Its totient is φ = 34107840.

The previous prime is 133071707. The next prime is 133071737. The reversal of 133071708 is 807170331.

It is a super-3 number, since 3×1330717083 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133071703) 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, 72085 + ... + 73907.

It is an arithmetic number, because the mean of its divisors is an integer number (4085760).

Almost surely, 2133071708 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 133071708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196116480).

133071708 is an abundant number, since it is smaller than the sum of its proper divisors (259161252).

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

133071708 is a wasteful number, since it uses less digits than its factorization.

133071708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 133071708 is about 11535.6711118166. The cubic root of 133071708 is about 510.5385928718.

The spelling of 133071708 in words is "one hundred thirty-three million, seventy-one thousand, seven hundred eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 79 84 132 154 158 231 237 308 316 462 474 553 869 924 948 1106 1659 1738 1823 2212 2607 3318 3476 3646 5214 5469 6083 6636 7292 10428 10938 12166 12761 18249 20053 21876 24332 25522 36498 38283 40106 51044 60159 72996 76566 80212 120318 140371 144017 153132 240636 280742 288034 421113 432051 561484 576068 842226 864102 1008119 1584187 1684452 1728204 2016238 3024357 3168374 4032476 4752561 6048714 6336748 9505122 11089309 12097428 19010244 22178618 33267927 44357236 66535854 133071708