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30216422 = 219241851
BaseRepresentation
bin111001101000…
…1000011100110
32002212011010202
41303101003212
530213411142
62555350502
7514556345
oct163210346
962764122
1030216422
1116069055
12a152432
13634c652
144027b5c
1529bd032
hex1cd10e6

30216422 has 12 divisors (see below), whose sum is σ = 47836836. Its totient is φ = 14312700.

The previous prime is 30216419. The next prime is 30216427. The reversal of 30216422 is 22461203.

It is a junction number, because it is equal to n+sod(n) for n = 30216394 and 30216403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30216427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20204 + ... + 21647.

It is an arithmetic number, because the mean of its divisors is an integer number (3986403).

Almost surely, 230216422 is an apocalyptic number.

30216422 is a deficient number, since it is larger than the sum of its proper divisors (17620414).

30216422 is a wasteful number, since it uses less digits than its factorization.

30216422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41891 (or 41872 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30216422 is about 5496.9466069810. The cubic root of 30216422 is about 311.4686537442.

Adding to 30216422 its reverse (22461203), we get a palindrome (52677625).

The spelling of 30216422 in words is "thirty million, two hundred sixteen thousand, four hundred twenty-two".

Divisors: 1 2 19 38 361 722 41851 83702 795169 1590338 15108211 30216422