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7431052897 = 421175310069
BaseRepresentation
bin1101110101110110…
…01101111001100001
3201011212211121012101
412322323031321201
5110204322143042
63225213130401
7352101623152
oct67273157141
921155747171
107431052897
1131736aa034
121534789a01
139156ca828
14506cc5929
152d75b36b7
hex1baecde61

7431052897 has 8 divisors (see below), whose sum is σ = 7453693160. Its totient is φ = 7408437120.

The previous prime is 7431052883. The next prime is 7431052901. The reversal of 7431052897 is 7982501347.

It can be written as a sum of positive squares in 4 ways, for example, as 1140818176 + 6290234721 = 33776^2 + 79311^2 .

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-7431052897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7431052807) 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, 732979 + ... + 743047.

It is an arithmetic number, because the mean of its divisors is an integer number (931711645).

Almost surely, 27431052897 is an apocalyptic number.

It is an amenable number.

7431052897 is a deficient number, since it is larger than the sum of its proper divisors (22640263).

7431052897 is a wasteful number, since it uses less digits than its factorization.

7431052897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12243.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 7431052897 is about 86203.5550137000. Note that the first 3 decimals coincide. The cubic root of 7431052897 is about 1951.4171506032.

The spelling of 7431052897 in words is "seven billion, four hundred thirty-one million, fifty-two thousand, eight hundred ninety-seven".

Divisors: 1 421 1753 10069 738013 4239049 17650957 7431052897