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131345335154 = 21143193719393
BaseRepresentation
bin111101001010011001…
…0101100001101110010
3110120000200102100111202
41322110302230031302
54122443401211104
6140201134211202
712326600633165
oct1722462541562
9416020370452
10131345335154
1150781021370
1221557353b02
13c502823837
14650002badc
15363b00b51e
hex1e94cac372

131345335154 has 32 divisors (see below), whose sum is σ = 221066898624. Its totient is φ = 58011770880.

The previous prime is 131345335129. The next prime is 131345335169. The reversal of 131345335154 is 451533543131.

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, 177119 + ... + 542274.

It is an arithmetic number, because the mean of its divisors is an integer number (6908340582).

Almost surely, 2131345335154 is an apocalyptic number.

131345335154 is a deficient number, since it is larger than the sum of its proper divisors (89721563470).

131345335154 is a wasteful number, since it uses less digits than its factorization.

131345335154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719642.

The product of its digits is 162000, while the sum is 38.

Adding to 131345335154 its reverse (451533543131), we get a palindrome (582878878285).

The spelling of 131345335154 in words is "one hundred thirty-one billion, three hundred forty-five million, three hundred thirty-five thousand, one hundred fifty-four".

Divisors: 1 2 11 22 43 86 193 386 473 946 2123 4246 8299 16598 91289 182578 719393 1438786 7913323 15826646 30933899 61867798 138842849 277685698 340272889 680545778 1527271339 3054542678 5970242507 11940485014 65672667577 131345335154