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303123132013 = 13140839165559
BaseRepresentation
bin1000110100100111000…
…10111110111001101101
31001222102011122120110011
410122103202332321231
514431244010211023
6351130340413221
730620450052442
oct4322342767155
91058364576404
10303123132013
11107610118639
124a8b73a7211
1322779b95810
1410957c3b9c9
157d4197650d
hex46938bee6d

303123132013 has 8 divisors (see below), whose sum is σ = 326444585600. Its totient is φ = 279802291248.

The previous prime is 303123131921. The next prime is 303123132073. The reversal of 303123132013 is 310231321303.

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-303123132013 is a prime.

It is a super-2 number, since 2×3031231320132 (a number of 24 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 (303123132073) 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, 1748128 + ... + 1913686.

It is an arithmetic number, because the mean of its divisors is an integer number (40805573200).

Almost surely, 2303123132013 is an apocalyptic number.

It is an amenable number.

303123132013 is a deficient number, since it is larger than the sum of its proper divisors (23321453587).

303123132013 is a wasteful number, since it uses less digits than its factorization.

303123132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306411.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 303123132013 its reverse (310231321303), we get a palindrome (613354453316).

The spelling of 303123132013 in words is "three hundred three billion, one hundred twenty-three million, one hundred thirty-two thousand, thirteen".

Divisors: 1 13 140839 165559 1830907 2152267 23317164001 303123132013