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479930493 = 3761374653
BaseRepresentation
bin11100100110110…
…010100001111101
31020110001222212110
4130212302201331
51440330233433
6115342324233
714615225160
oct3446624175
91213058773
10479930493
112269a9979
12114889679
1378579153
1447a4dad7
152c201963
hex1c9b287d

479930493 has 16 divisors (see below), whose sum is σ = 743313536. Its totient is φ = 269749440.

The previous prime is 479930467. The next prime is 479930509. The reversal of 479930493 is 394039974.

It is not a de Polignac number, because 479930493 - 28 = 479930237 is a prime.

It is a super-2 number, since 2×4799304932 = 460666556222446098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479930413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186046 + ... + 188607.

It is an arithmetic number, because the mean of its divisors is an integer number (46457096).

Almost surely, 2479930493 is an apocalyptic number.

It is an amenable number.

479930493 is a deficient number, since it is larger than the sum of its proper divisors (263383043).

479930493 is a wasteful number, since it uses less digits than its factorization.

479930493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374724.

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 479930493 is about 21907.3159697851. The cubic root of 479930493 is about 782.9357332559.

The spelling of 479930493 in words is "four hundred seventy-nine million, nine hundred thirty thousand, four hundred ninety-three".

Divisors: 1 3 7 21 61 183 427 1281 374653 1123959 2622571 7867713 22853833 68561499 159976831 479930493