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135785078 = 21113259619
BaseRepresentation
bin10000001011111…
…10101001110110
3100110111121002222
420011332221312
5234230110303
621250202342
73236103602
oct1005765166
9313447088
10135785078
116a713380
12395833b2
1322192a00
1414068502
15bdc2938
hex817ea76

135785078 has 48 divisors (see below), whose sum is σ = 245073600. Its totient is φ = 55916640.

The previous prime is 135785057. The next prime is 135785087. The reversal of 135785078 is 870587531.

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, 219053 + ... + 219671.

It is an arithmetic number, because the mean of its divisors is an integer number (5105700).

Almost surely, 2135785078 is an apocalyptic number.

135785078 is a deficient number, since it is larger than the sum of its proper divisors (109288522).

135785078 is a wasteful number, since it uses less digits than its factorization.

135785078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 44.

The square root of 135785078 is about 11652.6854415624. The cubic root of 135785078 is about 513.9852807082.

The spelling of 135785078 in words is "one hundred thirty-five million, seven hundred eighty-five thousand, seventy-eight".

Divisors: 1 2 11 13 22 26 59 118 143 169 286 338 619 649 767 1238 1298 1534 1859 3718 6809 8047 8437 9971 13618 16094 16874 19942 36521 73042 88517 104611 109681 177034 209222 219362 401731 474773 803462 949546 1150721 2301442 5222503 6172049 10445006 12344098 67892539 135785078