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133027550 = 25217198237
BaseRepresentation
bin1111110110111…
…01011011011110
3100021022111111022
413323131123132
5233023340200
621111124142
73203500265
oct773353336
9307274438
10133027550
11690aa627
1238673652
1321738836
141394b5dc
15ba2a885
hex7edd6de

133027550 has 48 divisors (see below), whose sum is σ = 275808240. Its totient is φ = 47439360.

The previous prime is 133027549. The next prime is 133027571. The reversal of 133027550 is 55720331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12032 + ... + 20268.

It is an arithmetic number, because the mean of its divisors is an integer number (5746005).

Almost surely, 2133027550 is an apocalyptic number.

133027550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133027550 is an abundant number, since it is smaller than the sum of its proper divisors (142780690).

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

133027550 is a wasteful number, since it uses less digits than its factorization.

133027550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8285 (or 8280 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 133027550 is about 11533.7569768051. The cubic root of 133027550 is about 510.4821149080.

Adding to 133027550 its reverse (55720331), we get a palindrome (188747881).

The spelling of 133027550 in words is "one hundred thirty-three million, twenty-seven thousand, five hundred fifty".

Divisors: 1 2 5 10 17 19 25 34 38 50 85 95 170 190 323 425 475 646 850 950 1615 3230 8075 8237 16150 16474 41185 82370 140029 156503 205925 280058 313006 411850 700145 782515 1400290 1565030 2660551 3500725 3912575 5321102 7001450 7825150 13302755 26605510 66513775 133027550