Search a number
-
+
87153696 = 25327172543
BaseRepresentation
bin1010011000111…
…01110000100000
320001222212101200
411030131300200
5134302404241
612352001200
72105536260
oct514356040
9201885350
1087153696
1145217953
1225230200
1315096546
14b8097a0
1579b84b6
hex531dc20

87153696 has 144 divisors (see below), whose sum is σ = 300029184. Its totient is φ = 23427072.

The previous prime is 87153673. The next prime is 87153697. The reversal of 87153696 is 69635178.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (87153697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33001 + ... + 35543.

It is an arithmetic number, because the mean of its divisors is an integer number (2083536).

Almost surely, 287153696 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 87153696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150014592).

87153696 is an abundant number, since it is smaller than the sum of its proper divisors (212875488).

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

87153696 is a wasteful number, since it uses less digits than its factorization.

87153696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583 (or 2572 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 87153696 is about 9335.6143879233. The cubic root of 87153696 is about 443.3655413438.

The spelling of 87153696 in words is "eighty-seven million, one hundred fifty-three thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 28 32 34 36 42 48 51 56 63 68 72 84 96 102 112 119 126 136 144 153 168 204 224 238 252 272 288 306 336 357 408 476 504 544 612 672 714 816 952 1008 1071 1224 1428 1632 1904 2016 2142 2448 2543 2856 3808 4284 4896 5086 5712 7629 8568 10172 11424 15258 17136 17801 20344 22887 30516 34272 35602 40688 43231 45774 53403 61032 71204 81376 86462 91548 106806 122064 129693 142408 160209 172924 183096 213612 244128 259386 284816 302617 320418 345848 366192 389079 427224 518772 569632 605234 640836 691696 732384 778158 854448 907851 1037544 1210468 1281672 1383392 1556316 1708896 1815702 2075088 2420936 2563344 2723553 3112632 3631404 4150176 4841872 5126688 5447106 6225264 7262808 9683744 10894212 12450528 14525616 21788424 29051232 43576848 87153696