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131331310 = 251110111821
BaseRepresentation
bin1111101001111…
…11010011101110
3100011010022200121
413310333103232
5232110100220
621010515154
73153204055
oct764772356
9304108617
10131331310
1168151180
1237b95aba
1321293746
141362939c
15b7e2eaa
hex7d3f4ee

131331310 has 32 divisors (see below), whose sum is σ = 260462304. Its totient is φ = 47280000.

The previous prime is 131331293. The next prime is 131331329. The reversal of 131331310 is 13133131.

It is a super-2 number, since 2×1313313102 = 34495825972632200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 5200 + ... + 17020.

It is an arithmetic number, because the mean of its divisors is an integer number (8139447).

Almost surely, 2131331310 is an apocalyptic number.

131331310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131331310 is a deficient number, since it is larger than the sum of its proper divisors (129130994).

131331310 is a wasteful number, since it uses less digits than its factorization.

131331310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11940.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 131331310 is about 11459.9873472880. The cubic root of 131331310 is about 508.3031004743.

Adding to 131331310 its reverse (13133131), we get a palindrome (144464441).

It can be divided in two parts, 1313 and 31310, that added together give a palindrome (32623).

The spelling of 131331310 in words is "one hundred thirty-one million, three hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 55 101 110 202 505 1010 1111 2222 5555 11110 11821 23642 59105 118210 130031 260062 650155 1193921 1300310 2387842 5969605 11939210 13133131 26266262 65665655 131331310