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487052436 = 2231317318047
BaseRepresentation
bin11101000001111…
…101010010010100
31020221110211100010
4131001331102110
51444141134221
6120155120220
715032606643
oct3501752224
91227424303
10487052436
1122aa23782
12117143070
1379ba0a10
144898535a
152cb5bc76
hex1d07d494

487052436 has 48 divisors (see below), whose sum is σ = 1231017984. Its totient is φ = 148987776.

The previous prime is 487052389. The next prime is 487052473. The reversal of 487052436 is 634250784.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 487052394 and 487052403.

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, 17965 + ... + 36011.

It is an arithmetic number, because the mean of its divisors is an integer number (25646208).

Almost surely, 2487052436 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 487052436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615508992).

487052436 is an abundant number, since it is smaller than the sum of its proper divisors (743965548).

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

487052436 is a wasteful number, since it uses less digits than its factorization.

487052436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18240 (or 18238 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 487052436 is about 22069.2645097203. The cubic root of 487052436 is about 786.7895322632.

The spelling of 487052436 in words is "four hundred eighty-seven million, fifty-two thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 173 346 519 692 1038 2076 2249 4498 6747 8996 13494 18047 26988 36094 54141 72188 108282 216564 234611 469222 703833 938444 1407666 2815332 3122131 6244262 9366393 12488524 18732786 37465572 40587703 81175406 121763109 162350812 243526218 487052436