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30220004 = 227555001
BaseRepresentation
bin111001101000…
…1111011100100
32002212100001102
41303101323210
530214020004
62555415232
7514602653
oct163217344
962770042
1030220004
1116070811
12a154518
136351179
14402919a
1529be11e
hex1cd1ee4

30220004 has 6 divisors (see below), whose sum is σ = 52885014. Its totient is φ = 15110000.

The previous prime is 30219983. The next prime is 30220007. The reversal of 30220004 is 40002203.

It can be written as a sum of positive squares in only one way, i.e., 29138404 + 1081600 = 5398^2 + 1040^2 .

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 as a sum of consecutive naturals, namely, 3777497 + ... + 3777504.

It is an arithmetic number, because the mean of its divisors is an integer number (8814169).

Almost surely, 230220004 is an apocalyptic number.

It is an amenable number.

30220004 is a deficient number, since it is larger than the sum of its proper divisors (22665010).

30220004 is a wasteful number, since it uses less digits than its factorization.

30220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7555005 (or 7555003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 30220004 is about 5497.2724145707. The cubic root of 30220004 is about 311.4809609220.

Adding to 30220004 its reverse (40002203), we get a palindrome (70222207).

The spelling of 30220004 in words is "thirty million, two hundred twenty thousand, four".

Divisors: 1 2 4 7555001 15110002 30220004