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479497980 = 223513614741
BaseRepresentation
bin11100100101001…
…000111011111100
31020102021000120110
4130211020323330
51440222413410
6115325150020
714611444203
oct3445107374
91212230513
10479497980
11226733a25
121146bb310
1378457320
144797a23a
152c168720
hex1c948efc

479497980 has 48 divisors (see below), whose sum is σ = 1445873184. Its totient is φ = 118030080.

The previous prime is 479497973. The next prime is 479498017. The reversal of 479497980 is 89794974.

It is a self number, because there is not a number n which added to its sum of digits gives 479497980.

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, 306591 + ... + 308150.

It is an arithmetic number, because the mean of its divisors is an integer number (30122358).

Almost surely, 2479497980 is an apocalyptic number.

It is an amenable number.

479497980 is an abundant number, since it is smaller than the sum of its proper divisors (966375204).

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

479497980 is a wasteful number, since it uses less digits than its factorization.

479497980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614766 (or 614764 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 479497980 is about 21897.4423163985. The cubic root of 479497980 is about 782.7004688700.

The spelling of 479497980 in words is "four hundred seventy-nine million, four hundred ninety-seven thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 614741 1229482 1844223 2458964 3073705 3688446 6147410 7376892 7991633 9221115 12294820 15983266 18442230 23974899 31966532 36884460 39958165 47949798 79916330 95899596 119874495 159832660 239748990 479497980