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1831668041 = 71272578017
BaseRepresentation
bin110110100101101…
…0000100101001001
311201122121101012002
41231023100211021
512222401334131
6501431000345
763250631030
oct15513204511
94648541162
101831668041
1185aa24345
124315090b5
1323262a358
1413539b717
15aac116cb
hex6d2d0949

1831668041 has 16 divisors (see below), whose sum is σ = 2118291456. Its totient is φ = 1551384576.

The previous prime is 1831668029. The next prime is 1831668049. The reversal of 1831668041 is 1408661381.

It is not a de Polignac number, because 1831668041 - 222 = 1827473737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1831667986 and 1831668004.

It is not an unprimeable number, because it can be changed into a prime (1831668049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224465 + ... + 232481.

It is an arithmetic number, because the mean of its divisors is an integer number (132393216).

Almost surely, 21831668041 is an apocalyptic number.

It is an amenable number.

1831668041 is a deficient number, since it is larger than the sum of its proper divisors (286623415).

1831668041 is a wasteful number, since it uses less digits than its factorization.

1831668041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1831668041 is about 42797.9910860311. The cubic root of 1831668041 is about 1223.5327240886.

The spelling of 1831668041 in words is "one billion, eight hundred thirty-one million, six hundred sixty-eight thousand, forty-one".

Divisors: 1 7 127 257 889 1799 8017 32639 56119 228473 1018159 2060369 7127113 14422583 261666863 1831668041