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52768512 = 283237619
BaseRepresentation
bin1100100101001…
…0111100000000
310200021220210100
43021102330000
5102002043022
65123002400
71210345026
oct311227400
9120256710
1052768512
1127871845
1215809400
13ac17594
147018716
1549751ac
hex3252f00

52768512 has 108 divisors (see below), whose sum is σ = 156509080. Its totient is φ = 17086464.

The previous prime is 52768511. The next prime is 52768519. The reversal of 52768512 is 21586725.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52768511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84939 + ... + 85557.

Almost surely, 252768512 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 52768512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78254540).

52768512 is an abundant number, since it is smaller than the sum of its proper divisors (103740568).

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

52768512 is a wasteful number, since it uses less digits than its factorization.

52768512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 661 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 52768512 is about 7264.1938300131. The cubic root of 52768512 is about 375.0808998793.

The spelling of 52768512 in words is "fifty-two million, seven hundred sixty-eight thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 37 48 64 72 74 96 111 128 144 148 192 222 256 288 296 333 384 444 576 592 619 666 768 888 1152 1184 1238 1332 1776 1857 2304 2368 2476 2664 3552 3714 4736 4952 5328 5571 7104 7428 9472 9904 10656 11142 14208 14856 19808 21312 22284 22903 28416 29712 39616 42624 44568 45806 59424 68709 79232 85248 89136 91612 118848 137418 158464 178272 183224 206127 237696 274836 356544 366448 412254 475392 549672 713088 732896 824508 1099344 1426176 1465792 1649016 2198688 2931584 3298032 4397376 5863168 6596064 8794752 13192128 17589504 26384256 52768512