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485865216 = 283423431
BaseRepresentation
bin11100111101011…
…011011100000000
31020212020111210000
4130331123130000
51443340141331
6120113440000
715016533444
oct3475333400
91225214700
10485865216
1122a292801
12116870000
1379876515
1448756824
152c9c50e6
hex1cf5b700

485865216 has 90 divisors (see below), whose sum is σ = 1448823992. Its totient is φ = 161948160.

The previous prime is 485865209. The next prime is 485865221. The reversal of 485865216 is 612568584.

485865216 is a `hidden beast` number, since 4 + 8 + 586 + 52 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9021 + ... + 32451.

Almost surely, 2485865216 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 485865216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724411996).

485865216 is an abundant number, since it is smaller than the sum of its proper divisors (962958776).

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

485865216 is an equidigital number, since it uses as much as digits as its factorization.

485865216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23459 (or 23436 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 485865216 is about 22042.3505098708. The cubic root of 485865216 is about 786.1497296479.

The spelling of 485865216 in words is "four hundred eighty-five million, eight hundred sixty-five thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 576 648 768 864 1152 1296 1728 2304 2592 3456 5184 6912 10368 20736 23431 46862 70293 93724 140586 187448 210879 281172 374896 421758 562344 632637 749792 843516 1124688 1265274 1499584 1687032 1897911 2249376 2530548 2999168 3374064 3795822 4498752 5061096 5998336 6748128 7591644 8997504 10122192 13496256 15183288 17995008 20244384 26992512 30366576 40488768 53985024 60733152 80977536 121466304 161955072 242932608 485865216