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131003242042 = 2233281122837
BaseRepresentation
bin111101000000001100…
…1101101011000111010
3110112010211201012222111
41322000121231120322
54121243312221132
6140103154042534
712315245120161
oct1720031553072
9415124635874
10131003242042
1150615a07792
122148087944a
13c4799a858a
1464aa81c3d8
15361ae85647
hex1e8066d63a

131003242042 has 8 divisors (see below), whose sum is σ = 197348232276. Its totient is φ = 65220497952.

The previous prime is 131003242033. The next prime is 131003242049. The reversal of 131003242042 is 240242300131.

It can be written as a sum of positive squares in 2 ways, for example, as 130646825401 + 356416641 = 361451^2 + 18879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131003242049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140560953 + ... + 140561884.

Almost surely, 2131003242042 is an apocalyptic number.

131003242042 is a deficient number, since it is larger than the sum of its proper divisors (66344990234).

131003242042 is a wasteful number, since it uses less digits than its factorization.

131003242042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281123072.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 131003242042 its reverse (240242300131), we get a palindrome (371245542173).

The spelling of 131003242042 in words is "one hundred thirty-one billion, three million, two hundred forty-two thousand, forty-two".

Divisors: 1 2 233 466 281122837 562245674 65501621021 131003242042