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478996996 = 223123532
BaseRepresentation
bin11100100011001…
…110101000000100
31020101022120100111
4130203032220010
51440110400441
6115310322404
714604256462
oct3443165004
91211276314
10478996996
11226421595
121144b9404
137831029a
1447889832
152c0ba081
hex1c8cea04

478996996 has 27 divisors (see below), whose sum is σ = 868617813. Its totient is φ = 231116160.

The previous prime is 478996993. The next prime is 478996997. The reversal of 478996996 is 699699874.

The square root of 478996996 is 21886.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 194602500 + 284394496 = 13950^2 + 16864^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478996993) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1356756 + ... + 1357108.

Almost surely, 2478996996 is an apocalyptic number.

478996996 is the 21886-th square number.

It is an amenable number.

478996996 is a deficient number, since it is larger than the sum of its proper divisors (389620817).

478996996 is an equidigital number, since it uses as much as digits as its factorization.

478996996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 386 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 67.

The cubic root of 478996996 is about 782.4277829422.

The spelling of 478996996 in words is "four hundred seventy-eight million, nine hundred ninety-six thousand, nine hundred ninety-six".

Divisors: 1 2 4 31 62 124 353 706 961 1412 1922 3844 10943 21886 43772 124609 249218 339233 498436 678466 1356932 3862879 7725758 15451516 119749249 239498498 478996996