Search a number
-
+
1312230031210 = 257432753158357
BaseRepresentation
bin10011000110000111000…
…000010011111101101010
311122110002120022102002001
4103012013000103331222
5132444421341444320
62442455151401214
7163543166141140
oct23060700237552
94573076272061
101312230031210
114665717086aa
1219239b22320a
1396986acc4b7
1447725965590
152420298320a
hex13187013f6a

1312230031210 has 64 divisors (see below), whose sum is σ = 2763243217152. Its totient is φ = 439282077696.

The previous prime is 1312230031201. The next prime is 1312230031213. The reversal of 1312230031210 is 121300322131.

It is not an unprimeable number, because it can be changed into a prime (1312230031213) 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 31 ways as a sum of consecutive naturals, for example, 8207352 + ... + 8365708.

It is an arithmetic number, because the mean of its divisors is an integer number (43175675268).

Almost surely, 21312230031210 is an apocalyptic number.

1312230031210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312230031210 is an abundant number, since it is smaller than the sum of its proper divisors (1451013185942).

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

1312230031210 is a wasteful number, since it uses less digits than its factorization.

1312230031210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161167.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1312230031210 its reverse (121300322131), we get a palindrome (1433530353341).

The spelling of 1312230031210 in words is "one trillion, three hundred twelve billion, two hundred thirty million, thirty-one thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 43 70 86 215 301 430 602 1505 2753 3010 5506 13765 19271 27530 38542 96355 118379 158357 192710 236758 316714 591895 791785 828653 1108499 1183790 1583570 1657306 2216998 4143265 5542495 6809351 8286530 11084990 13618702 34046755 47665457 68093510 95330914 238327285 435956821 476654570 871913642 2179784105 3051697747 4359568210 6103395494 15258488735 18746143303 30516977470 37492286606 93730716515 131223003121 187461433030 262446006242 656115015605 1312230031210