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78482528 = 254121459
BaseRepresentation
bin1001010110110…
…00110001100000
312110200022210022
410223120301200
5130042420103
611442053012
71642043015
oct453306140
9173608708
1078482528
11403350a3
122234a168
131334b787
14a5cd70c
156d54138
hex4ad8c60

78482528 has 36 divisors (see below), whose sum is σ = 158481540. Its totient is φ = 38257920.

The previous prime is 78482491. The next prime is 78482561. The reversal of 78482528 is 82528487.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 53063 + ... + 54521.

It is an arithmetic number, because the mean of its divisors is an integer number (4402265).

Almost surely, 278482528 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 78482528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79240770).

78482528 is an abundant number, since it is smaller than the sum of its proper divisors (79999012).

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

78482528 is a wasteful number, since it uses less digits than its factorization.

78482528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551 (or 1502 counting only the distinct ones).

The product of its digits is 286720, while the sum is 44.

The square root of 78482528 is about 8859.0365164616. The cubic root of 78482528 is about 428.1451163084.

The spelling of 78482528 in words is "seventy-eight million, four hundred eighty-two thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 32 41 82 164 328 656 1312 1459 1681 2918 3362 5836 6724 11672 13448 23344 26896 46688 53792 59819 119638 239276 478552 957104 1914208 2452579 4905158 9810316 19620632 39241264 78482528