Search a number
-
+
87388896 = 2537130043
BaseRepresentation
bin1010011010101…
…11001011100000
320002102211000210
411031113023200
5134332421041
612401014120
72110536060
oct515271340
9202384023
1087388896
1145368631
1225324340
131514960a
14b86b3a0
157a13016
hex53572e0

87388896 has 48 divisors (see below), whose sum is σ = 262168704. Its totient is φ = 24968064.

The previous prime is 87388877. The next prime is 87388909. The reversal of 87388896 is 69888378.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64350 + ... + 65693.

It is an arithmetic number, because the mean of its divisors is an integer number (5461848).

Almost surely, 287388896 is an apocalyptic number.

It is an amenable number.

87388896 is an abundant number, since it is smaller than the sum of its proper divisors (174779808).

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

87388896 is a wasteful number, since it uses less digits than its factorization.

87388896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130063 (or 130055 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 57.

The square root of 87388896 is about 9348.2028219332. The cubic root of 87388896 is about 443.7640171199.

The spelling of 87388896 in words is "eighty-seven million, three hundred eighty-eight thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 130043 260086 390129 520172 780258 910301 1040344 1560516 1820602 2080688 2730903 3121032 3641204 4161376 5461806 6242064 7282408 10923612 12484128 14564816 21847224 29129632 43694448 87388896