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8331404893 = 71936166843
BaseRepresentation
bin1111100001001011…
…10010011001011101
3210111122000012221121
413300211302121131
5114030314424033
63454414530541
7413313526120
oct76045623135
923448005847
108331404893
113595951899
121746206a51
13a2a0b84a6
145906d43b7
1533b65e62d
hex1f097265d

8331404893 has 8 divisors (see below), whose sum is σ = 9570941888. Its totient is φ = 7104201984.

The previous prime is 8331404849. The next prime is 8331404933. The reversal of 8331404893 is 3984041338.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8331404893 is a prime.

It is a super-2 number, since 2×83314048932 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8331404803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3082071 + ... + 3084772.

It is an arithmetic number, because the mean of its divisors is an integer number (1196367736).

Almost surely, 28331404893 is an apocalyptic number.

It is an amenable number.

8331404893 is a deficient number, since it is larger than the sum of its proper divisors (1239536995).

8331404893 is a wasteful number, since it uses less digits than its factorization.

8331404893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167043.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 8331404893 is about 91276.5298036686. The cubic root of 8331404893 is about 2027.2442642775.

The spelling of 8331404893 in words is "eight billion, three hundred thirty-one million, four hundred four thousand, eight hundred ninety-three".

Divisors: 1 7 193 1351 6166843 43167901 1190200699 8331404893