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131343230431441 = 7291669694955787
BaseRepresentation
bin11101110111010010111010…
…100101111111000011010001
3122020001021211120001012100101
4131313102322211333003101
5114203411413442301231
61143202125211452401
736444143456040340
oct3567227245770321
9566037746035311
10131343230431441
1138939395516406
1212893246157101
1358397c8a96b72
142461090d81b57
15102b8138b5661
hex7774ba97f0d1

131343230431441 has 32 divisors (see below), whose sum is σ = 155400821280000. Its totient is φ = 108615138492672.

The previous prime is 131343230431367. The next prime is 131343230431463. The reversal of 131343230431441 is 144134032343131.

It is not a de Polignac number, because 131343230431441 - 27 = 131343230431313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131343230431441.

It is not an unprimeable number, because it can be changed into a prime (131343230431471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2354341950 + ... + 2354397736.

It is an arithmetic number, because the mean of its divisors is an integer number (4856275665000).

Almost surely, 2131343230431441 is an apocalyptic number.

It is an amenable number.

131343230431441 is a deficient number, since it is larger than the sum of its proper divisors (24057590848559).

131343230431441 is a wasteful number, since it uses less digits than its factorization.

131343230431441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64441.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 131343230431441 its reverse (144134032343131), we get a palindrome (275477262774572).

The spelling of 131343230431441 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty million, four hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 7 29 203 1669 6949 11683 48401 48643 55787 201521 338807 390509 1410647 1617823 11324761 11597881 81185167 93108503 336338549 387663863 651759521 2354369843 2700146587 2713647041 11242252027 18901026109 78695764189 647010987347 4529076911429 18763318633063 131343230431441