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3968404479 = 321333917987
BaseRepresentation
bin1110110010001001…
…0000101111111111
3101020120020211112200
43230202100233333
531111402420404
61453440402543
7200224611234
oct35442205777
911216224480
103968404479
111757074026
12929016453
134b320b440
1429908b78b
151835d3839
hexec890bff

3968404479 has 12 divisors (see below), whose sum is σ = 6173073816. Its totient is φ = 2442094992.

The previous prime is 3968404441. The next prime is 3968404499. The reversal of 3968404479 is 9744048693.

It is a happy number.

3968404479 is a `hidden beast` number, since 3 + 96 + 84 + 0 + 4 + 479 = 666.

It is not a de Polignac number, because 3968404479 - 216 = 3968338943 is a prime.

It is a super-2 number, since 2×39684044792 = 31496468217894522882, which contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968404499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16958877 + ... + 16959110.

It is an arithmetic number, because the mean of its divisors is an integer number (514422818).

Almost surely, 23968404479 is an apocalyptic number.

3968404479 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3968404479 is a deficient number, since it is larger than the sum of its proper divisors (2204669337).

3968404479 is a wasteful number, since it uses less digits than its factorization.

3968404479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33918006 (or 33918003 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The square root of 3968404479 is about 62995.2734655545. The cubic root of 3968404479 is about 1583.2104351910.

The spelling of 3968404479 in words is "three billion, nine hundred sixty-eight million, four hundred four thousand, four hundred seventy-nine".

Divisors: 1 3 9 13 39 117 33917987 101753961 305261883 440933831 1322801493 3968404479