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490806432 = 25331075309
BaseRepresentation
bin11101010000010…
…001110010100000
31021012112112212000
4131100101302200
52001121301212
6120411404000
715106533354
oct3520216240
91235475760
10490806432
11232058156
12118453600
137a8b660c
1449281464
152d14e1dc
hex1d411ca0

490806432 has 96 divisors (see below), whose sum is σ = 1445169600. Its totient is φ = 162042624.

The previous prime is 490806413. The next prime is 490806479. The reversal of 490806432 is 234608094.

It is a happy number.

490806432 is a `hidden beast` number, since 4 + 9 + 0 + 8 + 0 + 643 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

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 15 ways as a sum of consecutive naturals, for example, 89794 + ... + 95102.

It is an arithmetic number, because the mean of its divisors is an integer number (15053850).

Almost surely, 2490806432 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 490806432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722584800).

490806432 is an abundant number, since it is smaller than the sum of its proper divisors (954363168).

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

490806432 is a wasteful number, since it uses less digits than its factorization.

490806432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435 (or 5421 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 490806432 is about 22154.1515748178. The cubic root of 490806432 is about 788.8057756106.

The spelling of 490806432 in words is "four hundred ninety million, eight hundred six thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 107 108 144 214 216 288 321 428 432 642 856 864 963 1284 1712 1926 2568 2889 3424 3852 5136 5309 5778 7704 10272 10618 11556 15408 15927 21236 23112 30816 31854 42472 46224 47781 63708 84944 92448 95562 127416 143343 169888 191124 254832 286686 382248 509664 568063 573372 764496 1136126 1146744 1528992 1704189 2272252 2293488 3408378 4544504 4586976 5112567 6816756 9089008 10225134 13633512 15337701 18178016 20450268 27267024 30675402 40900536 54534048 61350804 81801072 122701608 163602144 245403216 490806432