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1027102021 = 1193372911
BaseRepresentation
bin111101001110000…
…101010101000101
32122120200012002121
4331032011111011
54100414231041
6245530205541
734311136351
oct7516052505
92576605077
101027102021
11487854a50
12247b838b1
13134a3909a
149a5a4461
15602867d1
hex3d385545

1027102021 has 4 divisors (see below), whose sum is σ = 1120474944. Its totient is φ = 933729100.

The previous prime is 1027102003. The next prime is 1027102033. The reversal of 1027102021 is 1202017201.

1027102021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1027102021 - 211 = 1027099973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1027101986 and 1027102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027102001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46686445 + ... + 46686466.

It is an arithmetic number, because the mean of its divisors is an integer number (280118736).

Almost surely, 21027102021 is an apocalyptic number.

1027102021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1027102021 is a deficient number, since it is larger than the sum of its proper divisors (93372923).

1027102021 is an equidigital number, since it uses as much as digits as its factorization.

1027102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93372922.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1027102021 is about 32048.4324265634. The cubic root of 1027102021 is about 1008.9536007722.

Adding to 1027102021 its reverse (1202017201), we get a palindrome (2229119222).

The spelling of 1027102021 in words is "one billion, twenty-seven million, one hundred two thousand, twenty-one".

Divisors: 1 11 93372911 1027102021