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7090357997 = 61116235377
BaseRepresentation
bin1101001101001111…
…00100011011101101
3200022010202111122202
412212213210123231
5104010112423442
63131322551245
7340464022442
oct64647443355
920263674582
107090357997
11300935a9a8
12145a668525
1388cc51b08
144b395b9c9
152b7716c32
hex1a69e46ed

7090357997 has 4 divisors (see below), whose sum is σ = 7206593436. Its totient is φ = 6974122560.

The previous prime is 7090357991. The next prime is 7090358017. The reversal of 7090357997 is 7997530907.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151634596 + 6938723401 = 12314^2 + 83299^2 .

It is a cyclic number.

It is not a de Polignac number, because 7090357997 - 28 = 7090357741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7090357991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58117628 + ... + 58117749.

It is an arithmetic number, because the mean of its divisors is an integer number (1801648359).

Almost surely, 27090357997 is an apocalyptic number.

It is an amenable number.

7090357997 is a deficient number, since it is larger than the sum of its proper divisors (116235439).

7090357997 is a wasteful number, since it uses less digits than its factorization.

7090357997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116235438.

The product of its (nonzero) digits is 3750705, while the sum is 56.

The square root of 7090357997 is about 84204.2635321989. The cubic root of 7090357997 is about 1921.1269061816.

The spelling of 7090357997 in words is "seven billion, ninety million, three hundred fifty-seven thousand, nine hundred ninety-seven".

Divisors: 1 61 116235377 7090357997