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480312979 = 2320883173
BaseRepresentation
bin11100101000001…
…111111010010011
31020110210102112121
4130220033322103
51440430003404
6115354435111
714621410246
oct3450177223
91213712477
10480312979
11227140283
12114a32a97
1378681283
1447b0d25d
152c279e54
hex1ca0fe93

480312979 has 4 divisors (see below), whose sum is σ = 501196176. Its totient is φ = 459429784.

The previous prime is 480312929. The next prime is 480312983. The reversal of 480312979 is 979213084.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 480312979 - 29 = 480312467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (480312919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10441564 + ... + 10441609.

It is an arithmetic number, because the mean of its divisors is an integer number (125299044).

Almost surely, 2480312979 is an apocalyptic number.

480312979 is a deficient number, since it is larger than the sum of its proper divisors (20883197).

480312979 is a wasteful number, since it uses less digits than its factorization.

480312979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20883196.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 480312979 is about 21916.0438720130. The cubic root of 480312979 is about 783.1436678376.

The spelling of 480312979 in words is "four hundred eighty million, three hundred twelve thousand, nine hundred seventy-nine".

Divisors: 1 23 20883173 480312979