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1000110021 = 3919362753
BaseRepresentation
bin111011100111000…
…111011111000101
32120200212212000220
4323213013133011
54022012010041
6243123454553
733532536441
oct7347073705
92520785026
101000110021
11473599509
1223ab27459
1312c2782a1
1496b79821
155cc03d66
hex3b9c77c5

1000110021 has 8 divisors (see below), whose sum is σ = 1334934720. Its totient is φ = 666012672.

The previous prime is 1000110019. The next prime is 1000110073. The reversal of 1000110021 is 1200110001.

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

It is not a de Polignac number, because 1000110021 - 21 = 1000110019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000109991 and 1000110009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000110091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178620 + ... + 184133.

It is an arithmetic number, because the mean of its divisors is an integer number (166866840).

Almost surely, 21000110021 is an apocalyptic number.

It is an amenable number.

1000110021 is a deficient number, since it is larger than the sum of its proper divisors (334824699).

1000110021 is an equidigital number, since it uses as much as digits as its factorization.

1000110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363675.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1000110021 is about 31624.5161385910. The cubic root of 1000110021 is about 1000.0366723218.

Adding to 1000110021 its reverse (1200110001), we get a palindrome (2200220022).

The spelling of 1000110021 in words is "one billion, one hundred ten thousand, twenty-one".

Divisors: 1 3 919 2757 362753 1088259 333370007 1000110021