Search a number
-
+
130312213212 = 22353204893417
BaseRepresentation
bin111100101011100110…
…1101001001011011100
3110110100200102022122010
41321113031221023130
54113334411310322
6135510430551220
712262154351646
oct1712715511334
9413320368563
10130312213212
11502a0935585
1221309368510
13c39978a68c
146442b3b896
1535ca48620c
hex1e573692dc

130312213212 has 24 divisors (see below), whose sum is σ = 309798848016. Its totient is φ = 42617830528.

The previous prime is 130312213201. The next prime is 130312213247. The reversal of 130312213212 is 212312213031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102446073 + ... + 102447344.

It is an arithmetic number, because the mean of its divisors is an integer number (12908285334).

Almost surely, 2130312213212 is an apocalyptic number.

130312213212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130312213212 is an abundant number, since it is smaller than the sum of its proper divisors (179486634804).

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

130312213212 is a wasteful number, since it uses less digits than its factorization.

130312213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204893477 (or 204893475 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 130312213212 its reverse (212312213031), we get a palindrome (342624426243).

The spelling of 130312213212 in words is "one hundred thirty billion, three hundred twelve million, two hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 204893417 409786834 614680251 819573668 1229360502 2458721004 10859351101 21718702202 32578053303 43437404404 65156106606 130312213212