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6401093069 = 7914441867
BaseRepresentation
bin1011111011000100…
…01110110111001101
3121112002210012221002
411331202032313031
5101102134434234
62535101350045
7314424251630
oct57542166715
917462705832
106401093069
112795282a68
1212a7868325
137b0200a47
1444a1b9c17
15276e6527e
hex17d88edcd

6401093069 has 4 divisors (see below), whose sum is σ = 7315534944. Its totient is φ = 5486651196.

The previous prime is 6401093051. The next prime is 6401093071. The reversal of 6401093069 is 9603901046.

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 not a de Polignac number, because 6401093069 - 28 = 6401092813 is a prime.

It is a super-2 number, since 2×64010930692 = 81947984955999677522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401093009) 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, 457220927 + ... + 457220940.

It is an arithmetic number, because the mean of its divisors is an integer number (1828883736).

Almost surely, 26401093069 is an apocalyptic number.

It is an amenable number.

6401093069 is a deficient number, since it is larger than the sum of its proper divisors (914441875).

6401093069 is an equidigital number, since it uses as much as digits as its factorization.

6401093069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914441874.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 6401093069 is about 80006.8313895757. The cubic root of 6401093069 is about 1856.7412269462.

The spelling of 6401093069 in words is "six billion, four hundred one million, ninety-three thousand, sixty-nine".

Divisors: 1 7 914441867 6401093069