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479969953 = 2579186107
BaseRepresentation
bin11100100110111…
…100001010100001
31020110010222222221
4130212330022201
51440333014303
6115343231041
714615451211
oct3446741241
91213128887
10479969953
11226a26591
121148a8481
13785910b8
1447a60241
152c20d4bd
hex1c9bc2a1

479969953 has 4 divisors (see below), whose sum is σ = 480158640. Its totient is φ = 479781268.

The previous prime is 479969939. The next prime is 479970041. The reversal of 479969953 is 359969974.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-479969953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 479969891 and 479969900.

It is not an unprimeable number, because it can be changed into a prime (479969933) 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, 90475 + ... + 95632.

It is an arithmetic number, because the mean of its divisors is an integer number (120039660).

Almost surely, 2479969953 is an apocalyptic number.

It is an amenable number.

479969953 is a deficient number, since it is larger than the sum of its proper divisors (188687).

479969953 is a wasteful number, since it uses less digits than its factorization.

479969953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188686.

The product of its digits is 16533720, while the sum is 61.

The square root of 479969953 is about 21908.2165636548. The cubic root of 479969953 is about 782.9571903890.

The spelling of 479969953 in words is "four hundred seventy-nine million, nine hundred sixty-nine thousand, nine hundred fifty-three".

Divisors: 1 2579 186107 479969953