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10122000019 = 68031487873
BaseRepresentation
bin10010110110101000…
…10111011010010011
3222010102022212200121
421123110113122103
5131212213000034
64352221331111
7505555403065
oct113324273223
928112285617
1010122000019
11432467247a
121b65a06a97
13c54064831
146c043d735
153e395b1b4
hex25b517693

10122000019 has 4 divisors (see below), whose sum is σ = 10123494696. Its totient is φ = 10120505344.

The previous prime is 10122000001. The next prime is 10122000023. The reversal of 10122000019 is 91000022101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10122000019 - 213 = 10121991827 is a prime.

It is a super-2 number, since 2×101220000192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121999966 and 10122000011.

It is not an unprimeable number, because it can be changed into a prime (10122000029) 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, 737134 + ... + 750739.

It is an arithmetic number, because the mean of its divisors is an integer number (2530873674).

Almost surely, 210122000019 is an apocalyptic number.

10122000019 is a deficient number, since it is larger than the sum of its proper divisors (1494677).

10122000019 is an equidigital number, since it uses as much as digits as its factorization.

10122000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494676.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 10122000019 in words is "ten billion, one hundred twenty-two million, nineteen", and thus it is an aban number.

Divisors: 1 6803 1487873 10122000019