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487477680 = 243519106903
BaseRepresentation
bin11101000011100…
…101000110110000
31020222021102122220
4131003211012300
51444243241210
6120212201040
715036330504
oct3503450660
91228242586
10487477680
11230194218
12117309180
1379cbc441
1448a56304
152cbe2c70
hex1d0e51b0

487477680 has 80 divisors (see below), whose sum is σ = 1590731520. Its totient is φ = 123151104.

The previous prime is 487477673. The next prime is 487477717. The reversal of 487477680 is 86774784.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48892 + ... + 58011.

It is an arithmetic number, because the mean of its divisors is an integer number (19884144).

Almost surely, 2487477680 is an apocalyptic number.

487477680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

487477680 is an abundant number, since it is smaller than the sum of its proper divisors (1103253840).

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

487477680 is a wasteful number, since it uses less digits than its factorization.

487477680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106938 (or 106932 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 51.

The square root of 487477680 is about 22078.8967115660. The cubic root of 487477680 is about 787.0184468368.

The spelling of 487477680 in words is "four hundred eighty-seven million, four hundred seventy-seven thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 38 40 48 57 60 76 80 95 114 120 152 190 228 240 285 304 380 456 570 760 912 1140 1520 2280 4560 106903 213806 320709 427612 534515 641418 855224 1069030 1282836 1603545 1710448 2031157 2138060 2565672 3207090 4062314 4276120 5131344 6093471 6414180 8124628 8552240 10155785 12186942 12828360 16249256 20311570 24373884 25656720 30467355 32498512 40623140 48747768 60934710 81246280 97495536 121869420 162492560 243738840 487477680