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487471512 = 233118920747
BaseRepresentation
bin11101000011100…
…011100110011000
31020222021010012110
4131003203212120
51444243042022
6120212112320
715036303513
oct3503434630
91228233173
10487471512
1123018a620
121173056a0
1379cb96a8
1448a53d7a
152cbe100c
hex1d0e3998

487471512 has 64 divisors (see below), whose sum is σ = 1344470400. Its totient is φ = 146051840.

The previous prime is 487471489. The next prime is 487471541. The reversal of 487471512 is 215174784.

It is a super-2 number, since 2×4874715122 = 475256950023132288, which contains 22 as substring.

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, 13123 + ... + 33869.

It is an arithmetic number, because the mean of its divisors is an integer number (21007350).

Almost surely, 2487471512 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 487471512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672235200).

487471512 is an abundant number, since it is smaller than the sum of its proper divisors (856998888).

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

487471512 is a wasteful number, since it uses less digits than its factorization.

487471512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20856 (or 20852 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 487471512 is about 22078.7570302316. The cubic root of 487471512 is about 787.0151274710.

The spelling of 487471512 in words is "four hundred eighty-seven million, four hundred seventy-one thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 89 132 178 264 267 356 534 712 979 1068 1958 2136 2937 3916 5874 7832 11748 20747 23496 41494 62241 82988 124482 165976 228217 248964 456434 497928 684651 912868 1369302 1825736 1846483 2738604 3692966 5477208 5539449 7385932 11078898 14771864 20311313 22157796 40622626 44315592 60933939 81245252 121867878 162490504 243735756 487471512