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1000101031 = 3493797561
BaseRepresentation
bin111011100111000…
…101010010100111
32120200212101200221
4323213011102213
54022011213111
6243123345211
733532501306
oct7347052247
92520771627
101000101031
11473592786
1223ab22207
1312c274177
1496b7643d
155cc01371
hex3b9c54a7

1000101031 has 8 divisors (see below), whose sum is σ = 1005746000. Its totient is φ = 994472640.

The previous prime is 1000100999. The next prime is 1000101079. The reversal of 1000101031 is 1301010001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1000101031 - 25 = 1000100999 is a prime.

It is a super-2 number, since 2×10001010312 = 2000404144414525922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000101931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128491 + ... + 136051.

It is an arithmetic number, because the mean of its divisors is an integer number (125718250).

Almost surely, 21000101031 is an apocalyptic number.

1000101031 is a deficient number, since it is larger than the sum of its proper divisors (5644969).

1000101031 is an equidigital number, since it uses as much as digits as its factorization.

1000101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8289.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 1000101031 is about 31624.3740017095. The cubic root of 1000101031 is about 1000.0336758659.

Adding to 1000101031 its reverse (1301010001), we get a palindrome (2301111032).

The spelling of 1000101031 in words is "one billion, one hundred one thousand, thirty-one".

Divisors: 1 349 379 7561 132271 2638789 2865619 1000101031