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131302003240 = 2353282550081
BaseRepresentation
bin111101001001000110…
…1011001001000101000
3110112220122212212022001
41322102031121020220
54122401303100430
6140152545340344
712325533420112
oct1722215311050
9415818785261
10131302003240
1150759615471
12215449376b4
13c4c6861555
1464d838c3b2
1536372ec3ca
hex1e92359228

131302003240 has 16 divisors (see below), whose sum is σ = 295429507380. Its totient is φ = 52520801280.

The previous prime is 131302003201. The next prime is 131302003309. The reversal of 131302003240 is 42300203131.

It can be written as a sum of positive squares in 2 ways, for example, as 125963947396 + 5338055844 = 354914^2 + 73062^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641275001 + ... + 1641275080.

Almost surely, 2131302003240 is an apocalyptic number.

131302003240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131302003240 is an abundant number, since it is smaller than the sum of its proper divisors (164127504140).

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

131302003240 is a wasteful number, since it uses less digits than its factorization.

131302003240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282550092 (or 3282550088 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 131302003240 its reverse (42300203131), we get a palindrome (173602206371).

The spelling of 131302003240 in words is "one hundred thirty-one billion, three hundred two million, three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3282550081 6565100162 13130200324 16412750405 26260400648 32825500810 65651001620 131302003240