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479985290 = 25307156347
BaseRepresentation
bin11100100110111…
…111111010001010
31020110011210000222
4130212333322022
51440334012130
6115343430042
714615544011
oct3446777212
91213153028
10479985290
11226a37064
121148b5322
1378598085
1447a65a78
152c212ce5
hex1c9bfe8a

479985290 has 16 divisors (see below), whose sum is σ = 866793312. Its totient is φ = 191367504.

The previous prime is 479985269. The next prime is 479985301. The reversal of 479985290 is 92589974.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75104 + ... + 81243.

It is an arithmetic number, because the mean of its divisors is an integer number (54174582).

Almost surely, 2479985290 is an apocalyptic number.

479985290 is a deficient number, since it is larger than the sum of its proper divisors (386808022).

479985290 is a wasteful number, since it uses less digits than its factorization.

479985290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156661.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The square root of 479985290 is about 21908.5665893504. The cubic root of 479985290 is about 782.9655298600.

The spelling of 479985290 in words is "four hundred seventy-nine million, nine hundred eighty-five thousand, two hundred ninety".

Divisors: 1 2 5 10 307 614 1535 3070 156347 312694 781735 1563470 47998529 95997058 239992645 479985290