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479072447 = 7431158791
BaseRepresentation
bin11100100011100…
…001000010111111
31020101110101211222
4130203201002333
51440120304242
6115312103555
714605022450
oct3443410277
91211411758
10479072447
11226473247
12114534bbb
1378338729
14478a9127
152c0d25d2
hex1c8e10bf

479072447 has 8 divisors (see below), whose sum is σ = 548785152. Its totient is φ = 409678200.

The previous prime is 479072443. The next prime is 479072471. The reversal of 479072447 is 744270974.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 479072447 - 22 = 479072443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 479072398 and 479072407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479072443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76379 + ... + 82412.

It is an arithmetic number, because the mean of its divisors is an integer number (68598144).

Almost surely, 2479072447 is an apocalyptic number.

479072447 is a deficient number, since it is larger than the sum of its proper divisors (69712705).

479072447 is a wasteful number, since it uses less digits than its factorization.

479072447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159229.

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 479072447 is about 21887.7236596225. The cubic root of 479072447 is about 782.4688631297.

The spelling of 479072447 in words is "four hundred seventy-nine million, seventy-two thousand, four hundred forty-seven".

Divisors: 1 7 431 3017 158791 1111537 68438921 479072447