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3969426793 = 4392312251
BaseRepresentation
bin1110110010011000…
…1010010101101001
3101020122011202220011
43230212022111221
531112133124133
61453514331521
7200236366603
oct35446122551
911218152804
103969426793
111757702112
12929429ba1
134b34a8867
14299276173
151837366cd
hexec98a569

3969426793 has 4 divisors (see below), whose sum is σ = 4061739088. Its totient is φ = 3877114500.

The previous prime is 3969426719. The next prime is 3969426809. The reversal of 3969426793 is 3976249693.

3969426793 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3976249693 = 13305865361.

It is a cyclic number.

It is not a de Polignac number, because 3969426793 - 217 = 3969295721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3969427793) 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, 46156083 + ... + 46156168.

It is an arithmetic number, because the mean of its divisors is an integer number (1015434772).

Almost surely, 23969426793 is an apocalyptic number.

It is an amenable number.

3969426793 is a deficient number, since it is larger than the sum of its proper divisors (92312295).

3969426793 is an equidigital number, since it uses as much as digits as its factorization.

3969426793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92312294.

The product of its digits is 13226976, while the sum is 58.

The square root of 3969426793 is about 63003.3871549776. The cubic root of 3969426793 is about 1583.3463755700.

The spelling of 3969426793 in words is "three billion, nine hundred sixty-nine million, four hundred twenty-six thousand, seven hundred ninety-three".

Divisors: 1 43 92312251 3969426793