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133422560 = 2551943889
BaseRepresentation
bin1111111001111…
…01110111100000
3100022001120100022
413330331313200
5233124010220
621123413012
73210034025
oct774756740
9308046308
10133422560
116934a387
1238824168
132184657b
1413a1154c
15baa7925
hex7f3dde0

133422560 has 48 divisors (see below), whose sum is σ = 331808400. Its totient is φ = 50558976.

The previous prime is 133422551. The next prime is 133422577. The reversal of 133422560 is 65224331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18905 + ... + 24984.

It is an arithmetic number, because the mean of its divisors is an integer number (6912675).

Almost surely, 2133422560 is an apocalyptic number.

133422560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133422560 is an abundant number, since it is smaller than the sum of its proper divisors (198385840).

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

133422560 is a wasteful number, since it uses less digits than its factorization.

133422560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43923 (or 43915 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 133422560 is about 11550.8683656252. The cubic root of 133422560 is about 510.9868882452.

Adding to 133422560 its reverse (65224331), we get a palindrome (198646891).

The spelling of 133422560 in words is "one hundred thirty-three million, four hundred twenty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 43889 87778 175556 219445 351112 438890 702224 833891 877780 1404448 1667782 1755560 3335564 3511120 4169455 6671128 7022240 8338910 13342256 16677820 26684512 33355640 66711280 133422560