Search a number
-
+
75287264 = 2513712549
BaseRepresentation
bin1000111110011…
…00101011100000
312020122222201012
410133030223200
5123233143024
611245400052
71602634253
oct437145340
9166588635
1075287264
1139552488
1221269028
13127a02a0
149ddb09a
15692250e
hex47ccae0

75287264 has 48 divisors (see below), whose sum is σ = 161935200. Its totient is φ = 34245120.

The previous prime is 75287263. The next prime is 75287269. The reversal of 75287264 is 46278257.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75287263) by changing a digit.

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, 28262 + ... + 30810.

It is an arithmetic number, because the mean of its divisors is an integer number (3373650).

Almost surely, 275287264 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 75287264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80967600).

75287264 is an abundant number, since it is smaller than the sum of its proper divisors (86647936).

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

75287264 is a wasteful number, since it uses less digits than its factorization.

75287264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643 (or 2635 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 75287264 is about 8676.8233818604. The cubic root of 75287264 is about 422.2540641216.

The spelling of 75287264 in words is "seventy-five million, two hundred eighty-seven thousand, two hundred sixty-four".

Divisors: 1 2 4 8 13 16 26 32 52 71 104 142 208 284 416 568 923 1136 1846 2272 2549 3692 5098 7384 10196 14768 20392 29536 33137 40784 66274 81568 132548 180979 265096 361958 530192 723916 1060384 1447832 2352727 2895664 4705454 5791328 9410908 18821816 37643632 75287264