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455479957 = 1978292789
BaseRepresentation
bin11011001001100…
…001001010010101
31011202001210001001
4123021201022111
51413100324312
6113110303301
714200341622
oct3311411225
91152053031
10455479957
11214119919
12108657b31
137349808a
14446c7349
1529ec2057
hex1b261295

455479957 has 8 divisors (see below), whose sum is σ = 458508600. Its totient is φ = 452458944.

The previous prime is 455479939. The next prime is 455479979. The reversal of 455479957 is 759974554.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 242144721 + 213335236 = 15561^2 + 14606^2 .

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 455479957 - 223 = 447091349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 455479898 and 455479907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455479357) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 161919 + ... + 164707.

It is an arithmetic number, because the mean of its divisors is an integer number (57313575).

Almost surely, 2455479957 is an apocalyptic number.

It is an amenable number.

455479957 is a deficient number, since it is larger than the sum of its proper divisors (3028643).

455479957 is a wasteful number, since it uses less digits than its factorization.

455479957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815.

The product of its digits is 7938000, while the sum is 55.

The square root of 455479957 is about 21341.9764080087. The cubic root of 455479957 is about 769.4075146501.

The spelling of 455479957 in words is "four hundred fifty-five million, four hundred seventy-nine thousand, nine hundred fifty-seven".

Divisors: 1 197 829 2789 163313 549433 2312081 455479957