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487290320 = 245111573527
BaseRepresentation
bin11101000010110…
…111010111010000
31020221220220122122
4131002313113100
51444221242240
6120204153412
715034620326
oct3502672720
91227826578
10487290320
11230076480
12117238868
1379c5508a
1448a07d16
152cba74b5
hex1d0b75d0

487290320 has 80 divisors (see below), whose sum is σ = 1244170368. Its totient is φ = 176017920.

The previous prime is 487290299. The next prime is 487290343. The reversal of 487290320 is 23092784.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136397 + ... + 139923.

Almost surely, 2487290320 is an apocalyptic number.

487290320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 487290320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622085184).

487290320 is an abundant number, since it is smaller than the sum of its proper divisors (756880048).

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

487290320 is a wasteful number, since it uses less digits than its factorization.

487290320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708 (or 3702 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 487290320 is about 22074.6533381614. The cubic root of 487290320 is about 786.9176048375.

The spelling of 487290320 in words is "four hundred eighty-seven million, two hundred ninety thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 157 176 220 314 440 628 785 880 1256 1570 1727 2512 3140 3454 3527 6280 6908 7054 8635 12560 13816 14108 17270 17635 27632 28216 34540 35270 38797 56432 69080 70540 77594 138160 141080 155188 193985 282160 310376 387970 553739 620752 775940 1107478 1551880 2214956 2768695 3103760 4429912 5537390 6091129 8859824 11074780 12182258 22149560 24364516 30455645 44299120 48729032 60911290 97458064 121822580 243645160 487290320