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130231302312 = 23331231175743
BaseRepresentation
bin111100101001001100…
…0111111100010101000
3110110011001011121202010
41321102120333202220
54113203203133222
6135454420435520
712260152543056
oct1712230774250
9413131147663
10130231302312
115025a1a1a71
12212a6248ba0
13c385a9b7c7
1464360b91d6
1535c330280c
hex1e5263f8a8

130231302312 has 64 divisors (see below), whose sum is σ = 336230645760. Its totient is φ = 41991364800.

The previous prime is 130231302301. The next prime is 130231302317. The reversal of 130231302312 is 213203132031.

It is not an unprimeable number, because it can be changed into a prime (130231302317) 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 15 ways as a sum of consecutive naturals, for example, 1681513 + ... + 1757255.

It is an arithmetic number, because the mean of its divisors is an integer number (5253603840).

Almost surely, 2130231302312 is an apocalyptic number.

130231302312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130231302312 is an abundant number, since it is smaller than the sum of its proper divisors (205999343448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130231302312 is a wasteful number, since it uses less digits than its factorization.

130231302312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78094 (or 78090 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 130231302312 its reverse (213203132031), we get a palindrome (343434434343).

The spelling of 130231302312 in words is "one hundred thirty billion, two hundred thirty-one million, three hundred two thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 2311 4622 6933 9244 13866 18488 27732 55464 71641 75743 143282 151486 214923 227229 286564 302972 429846 454458 573128 605944 859692 908916 1719384 1817832 2348033 4696066 7044099 9392132 14088198 18784264 28176396 56352792 175042073 350084146 525126219 700168292 1050252438 1400336584 2100504876 4201009752 5426304263 10852608526 16278912789 21705217052 32557825578 43410434104 65115651156 130231302312