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487349940 = 2235711372851
BaseRepresentation
bin11101000011000…
…101111010110100
31020222000221102210
4131003011322310
51444230144230
6120205333420
715035256210
oct3503057264
91228027383
10487349940
11230107250
12117267270
1379c7625c
1448a21940
152cbb9eb0
hex1d0c5eb4

487349940 has 192 divisors, whose sum is σ = 1747888128. Its totient is φ = 98496000.

The previous prime is 487349939. The next prime is 487349987. The reversal of 487349940 is 49943784.

It is a self number, because there is not a number n which added to its sum of digits gives 487349940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 169515 + ... + 172365.

It is an arithmetic number, because the mean of its divisors is an integer number (9103584).

Almost surely, 2487349940 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 487349940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873944064).

487349940 is an abundant number, since it is smaller than the sum of its proper divisors (1260538188).

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

487349940 is a wasteful number, since it uses less digits than its factorization.

487349940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2916 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 487349940 is about 22076.0037144407. The cubic root of 487349940 is about 786.9496966675.

The spelling of 487349940 in words is "four hundred eighty-seven million, three hundred forty-nine thousand, nine hundred forty".