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10302997247 = 19542263013
BaseRepresentation
bin10011001100001101…
…10100001011111111
3222121000220111012122
421212012310023333
5132100031402442
64422204553155
7513214013564
oct114606641377
928530814178
1010302997247
114407856364
121bb65527bb
13c826c759a
146da4b686b
154047aedd2
hex2661b42ff

10302997247 has 4 divisors (see below), whose sum is σ = 10845260280. Its totient is φ = 9760734216.

The previous prime is 10302997207. The next prime is 10302997249. The reversal of 10302997247 is 74279920301.

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

It is a cyclic number.

It is not a de Polignac number, because 10302997247 - 218 = 10302735103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10302997198 and 10302997207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302997249) 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, 271131488 + ... + 271131525.

It is an arithmetic number, because the mean of its divisors is an integer number (2711315070).

Almost surely, 210302997247 is an apocalyptic number.

10302997247 is a deficient number, since it is larger than the sum of its proper divisors (542263033).

10302997247 is an equidigital number, since it uses as much as digits as its factorization.

10302997247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542263032.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 10302997247 in words is "ten billion, three hundred two million, nine hundred ninety-seven thousand, two hundred forty-seven".

Divisors: 1 19 542263013 10302997247