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30220003 = 112747273
BaseRepresentation
bin111001101000…
…1111011100011
32002212100001101
41303101323203
530214020003
62555415231
7514602652
oct163217343
962770041
1030220003
1116070810
12a154517
136351178
144029199
1529be11d
hex1cd1ee3

30220003 has 4 divisors (see below), whose sum is σ = 32967288. Its totient is φ = 27472720.

The previous prime is 30219983. The next prime is 30220007. The reversal of 30220003 is 30002203.

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

It is not a de Polignac number, because 30220003 - 25 = 30219971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30220007) 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, 1373626 + ... + 1373647.

It is an arithmetic number, because the mean of its divisors is an integer number (8241822).

Almost surely, 230220003 is an apocalyptic number.

30220003 is a deficient number, since it is larger than the sum of its proper divisors (2747285).

30220003 is a wasteful number, since it uses less digits than its factorization.

30220003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747284.

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 30220003 is about 5497.2723236165. The cubic root of 30220003 is about 311.4809574863.

Adding to 30220003 its reverse (30002203), we get a palindrome (60222206).

The spelling of 30220003 in words is "thirty million, two hundred twenty thousand, three".

Divisors: 1 11 2747273 30220003