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130030203031 = 977133091303
BaseRepresentation
bin111100100011001100…
…1110111000010010111
3110102122000202201101121
41321012121313002113
54112300212444111
6135422434304411
712252161326561
oct1710631670227
9412560681347
10130030203031
1150166729113
122124aa28107
13c35321b051
1464174cc331
1535b082c871
hex1e46677097

130030203031 has 4 divisors (see below), whose sum is σ = 130163295312. Its totient is φ = 129897110752.

The previous prime is 130030203019. The next prime is 130030203059. The reversal of 130030203031 is 130302030031.

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 130030203031 - 27 = 130030202903 is a prime.

It is a super-2 number, since 2×1300302030312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130030202996 and 130030203014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130030203091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66544675 + ... + 66546628.

It is an arithmetic number, because the mean of its divisors is an integer number (32540823828).

Almost surely, 2130030203031 is an apocalyptic number.

130030203031 is a deficient number, since it is larger than the sum of its proper divisors (133092281).

130030203031 is an equidigital number, since it uses as much as digits as its factorization.

130030203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133092280.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 130030203031 its reverse (130302030031), we get a palindrome (260332233062).

The spelling of 130030203031 in words is "one hundred thirty billion, thirty million, two hundred three thousand, thirty-one".

Divisors: 1 977 133091303 130030203031