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470980665 = 32517615661
BaseRepresentation
bin11100000100101…
…001100000111001
31012211020022000100
4130010221200321
51431032340130
6114422430013
714446161321
oct3404514071
91184208010
10470980665
11221946821
12111892309
13767645ac
14467a0281
152b534c60
hex1c129839

470980665 has 24 divisors (see below), whose sum is σ = 864389448. Its totient is φ = 236413440.

The previous prime is 470980649. The next prime is 470980703. The reversal of 470980665 is 566089074.

It can be written as a sum of positive squares in 4 ways, for example, as 44475561 + 426505104 = 6669^2 + 20652^2 .

It is not a de Polignac number, because 470980665 - 24 = 470980649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 470980665.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307066 + ... + 308595.

It is an arithmetic number, because the mean of its divisors is an integer number (36016227).

Almost surely, 2470980665 is an apocalyptic number.

470980665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

470980665 is a deficient number, since it is larger than the sum of its proper divisors (393408783).

470980665 is a wasteful number, since it uses less digits than its factorization.

470980665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615689 (or 615686 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 470980665 is about 21702.0889547527. The cubic root of 470980665 is about 778.0383894504.

The spelling of 470980665 in words is "four hundred seventy million, nine hundred eighty thousand, six hundred sixty-five".

Divisors: 1 3 5 9 15 17 45 51 85 153 255 765 615661 1846983 3078305 5540949 9234915 10466237 27704745 31398711 52331185 94196133 156993555 470980665