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30031202303 = 2112632931847
BaseRepresentation
bin11011111101111111…
…111100011111111111
32212111221000010212222
4123331333330133333
5443000441433203
621443544515555
72112126002444
oct337577743777
985457003788
1030031202303
1111810915863
1259a147bbbb
132aa799b3bb
14164c64b9cb
15bab73e038
hex6fdffc7ff

30031202303 has 16 divisors (see below), whose sum is σ = 30408086016. Its totient is φ = 29657540640.

The previous prime is 30031202269. The next prime is 30031202317. The reversal of 30031202303 is 30320213003.

It is a cyclic number.

It is not a de Polignac number, because 30031202303 - 224 = 30014425087 is a prime.

It is a super-2 number, since 2×300312023032 (a number of 22 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 (30031202363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16258526 + ... + 16260372.

It is an arithmetic number, because the mean of its divisors is an integer number (1900505376).

Almost surely, 230031202303 is an apocalyptic number.

30031202303 is a deficient number, since it is larger than the sum of its proper divisors (376883713).

30031202303 is a wasteful number, since it uses less digits than its factorization.

30031202303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 30031202303 its reverse (30320213003), we get a palindrome (60351415306).

The spelling of 30031202303 in words is "thirty billion, thirty-one million, two hundred two thousand, three hundred three".

Divisors: 1 211 263 293 1847 55493 61823 77059 389717 485761 541171 16259449 102495571 114187081 142327973 30031202303