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133031131210 = 2519767528493
BaseRepresentation
bin111101111100101000…
…1011111100001001010
3110201101011112122221201
41323321101133201022
54134421432144320
6141040314454414
712416430646405
oct1737121374112
9421334478851
10133031131210
115146667294a
1221947a3440a
13c710b68bb3
14661dc96d3c
1536d900670a
hex1ef945f84a

133031131210 has 16 divisors (see below), whose sum is σ = 240671552616. Its totient is φ = 52942337728.

The previous prime is 133031131099. The next prime is 133031131229. The reversal of 133031131210 is 12131130331.

It can be written as a sum of positive squares in 4 ways, for example, as 112902048081 + 20129083129 = 336009^2 + 141877^2 .

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, 33762277 + ... + 33766216.

Almost surely, 2133031131210 is an apocalyptic number.

133031131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133031131210 is a deficient number, since it is larger than the sum of its proper divisors (107640421406).

133031131210 is a wasteful number, since it uses less digits than its factorization.

133031131210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67528697.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 133031131210 its reverse (12131130331), we get a palindrome (145162261541).

The spelling of 133031131210 in words is "one hundred thirty-three billion, thirty-one million, one hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 5 10 197 394 985 1970 67528493 135056986 337642465 675284930 13303113121 26606226242 66515565605 133031131210