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3808400797 = 18112102927
BaseRepresentation
bin1110001011111111…
…1001010110011101
3100211102011210202101
43202333321112131
530244422311142
61425523125101
7163242605215
oct34277712635
910742153671
103808400797
111684819983
128a3513791
134890190c6
14281b1b245
1517452a0b7
hexe2ff959d

3808400797 has 4 divisors (see below), whose sum is σ = 3810505536. Its totient is φ = 3806296060.

The previous prime is 3808400779. The next prime is 3808400803. The reversal of 3808400797 is 7970048083.

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: 7970048083 = 19963399241.

It is a cyclic number.

It is not a de Polignac number, because 3808400797 - 219 = 3807876509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3808400597) 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, 1049653 + ... + 1053274.

It is an arithmetic number, because the mean of its divisors is an integer number (952626384).

Almost surely, 23808400797 is an apocalyptic number.

It is an amenable number.

3808400797 is a deficient number, since it is larger than the sum of its proper divisors (2104739).

3808400797 is a wasteful number, since it uses less digits than its factorization.

3808400797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104738.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 3808400797 is about 61712.2418730676. The cubic root of 3808400797 is about 1561.6398487268.

The spelling of 3808400797 in words is "three billion, eight hundred eight million, four hundred thousand, seven hundred ninety-seven".

Divisors: 1 1811 2102927 3808400797