Search a number
-
+
75085632 = 2632612137
BaseRepresentation
bin1000111100110…
…11011101000000
312020021202010100
410132123131000
5123210220012
611241202400
71601134356
oct436333500
9166252110
1075085632
1139424a46
1221190400
131272c58b
149d877d6
1568d28dc
hex479b740

75085632 has 84 divisors (see below), whose sum is σ = 218849956. Its totient is φ = 24606720.

The previous prime is 75085613. The next prime is 75085643. The reversal of 75085632 is 23658057.

It can be written as a sum of positive squares in 2 ways, for example, as 2903616 + 72182016 = 1704^2 + 8496^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 34068 + ... + 36204.

Almost surely, 275085632 is an apocalyptic number.

75085632 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75085632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109424978).

75085632 is an abundant number, since it is smaller than the sum of its proper divisors (143764324).

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

75085632 is a wasteful number, since it uses less digits than its factorization.

75085632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2203 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 75085632 is about 8665.1965932690. The cubic root of 75085632 is about 421.8767712189.

The spelling of 75085632 in words is "seventy-five million, eighty-five thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 64 72 96 122 144 183 192 244 288 366 488 549 576 732 976 1098 1464 1952 2137 2196 2928 3904 4274 4392 5856 6411 8548 8784 11712 12822 17096 17568 19233 25644 34192 35136 38466 51288 68384 76932 102576 130357 136768 153864 205152 260714 307728 391071 410304 521428 615456 782142 1042856 1173213 1230912 1564284 2085712 2346426 3128568 4171424 4692852 6257136 8342848 9385704 12514272 18771408 25028544 37542816 75085632