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131030242243 = 167797984457
BaseRepresentation
bin111101000001000000…
…0101101001111000011
3110112012201111222021221
41322002000231033003
54121322220222433
6140110000455511
712316023453025
oct1720200551703
9415181458257
10131030242243
115062a1793aa
122148991a597
13c482470024
1464b024a015
15361d51a72d
hex1e8202d3c3

131030242243 has 8 divisors (see below), whose sum is σ = 131980377312. Its totient is φ = 130082078016.

The previous prime is 131030242237. The next prime is 131030242249. The reversal of 131030242243 is 342242030131.

It is an interprime number because it is at equal distance from previous prime (131030242237) and next prime (131030242249).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131030242243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131030242249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359130 + ... + 625327.

It is an arithmetic number, because the mean of its divisors is an integer number (16497547164).

Almost surely, 2131030242243 is an apocalyptic number.

131030242243 is a deficient number, since it is larger than the sum of its proper divisors (950135069).

131030242243 is an equidigital number, since it uses as much as digits as its factorization.

131030242243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985421.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 131030242243 its reverse (342242030131), we get a palindrome (473272272374).

The spelling of 131030242243 in words is "one hundred thirty-one billion, thirty million, two hundred forty-two thousand, two hundred forty-three".

Divisors: 1 167 797 133099 984457 164404319 784612229 131030242243