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1000220219 = 1621617039
BaseRepresentation
bin111011100111100…
…010011000111011
32120201002110012022
4323213202120323
54022024021334
6243130105055
733533505635
oct7347423073
92521073168
101000220219
11473664289
1223ab7b18b
1312c2b64ab
1496ba7a55
155cc2682e
hex3b9e263b

1000220219 has 4 divisors (see below), whose sum is σ = 1000838880. Its totient is φ = 999601560.

The previous prime is 1000220209. The next prime is 1000220267. The reversal of 1000220219 is 9120220001.

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 1000220219 - 212 = 1000216123 is a prime.

It is a super-2 number, since 2×10002202192 = 2000880972992815922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000220197 and 1000220206.

It is not an unprimeable number, because it can be changed into a prime (1000220209) 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, 306899 + ... + 310140.

It is an arithmetic number, because the mean of its divisors is an integer number (250209720).

Almost surely, 21000220219 is an apocalyptic number.

1000220219 is a deficient number, since it is larger than the sum of its proper divisors (618661).

1000220219 is an equidigital number, since it uses as much as digits as its factorization.

1000220219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618660.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1000220219 is about 31626.2583781262. The cubic root of 1000220219 is about 1000.0734009455.

The spelling of 1000220219 in words is "one billion, two hundred twenty thousand, two hundred nineteen".

Divisors: 1 1621 617039 1000220219