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2131243041 = 3832103123
BaseRepresentation
bin111111100001000…
…0011000000100001
312111112022100211110
41333002003000201
513331044234131
6551251533533
7103546160364
oct17702030041
95445270743
102131243041
119a4038494
124b58ba2a9
1327c709875
141630a00db
15c7189646
hex7f083021

2131243041 has 12 divisors (see below), whose sum is σ = 2876334608. Its totient is φ = 1403696664.

The previous prime is 2131243021. The next prime is 2131243067. The reversal of 2131243041 is 1403421312.

It is not a de Polignac number, because 2131243041 - 27 = 2131242913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131242999 and 2131243017.

It is not an unprimeable number, because it can be changed into a prime (2131243021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30895 + ... + 72228.

Almost surely, 22131243041 is an apocalyptic number.

It is an amenable number.

2131243041 is a deficient number, since it is larger than the sum of its proper divisors (745091567).

2131243041 is an equidigital number, since it uses as much as digits as its factorization.

2131243041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103292 (or 103209 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2131243041 is about 46165.3879112913. The cubic root of 2131243041 is about 1286.8985931068.

Adding to 2131243041 its reverse (1403421312), we get a palindrome (3534664353).

The spelling of 2131243041 in words is "two billion, one hundred thirty-one million, two hundred forty-three thousand, forty-one".

Divisors: 1 3 83 249 6889 20667 103123 309369 8559209 25677627 710414347 2131243041