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30220202252 = 2217444414739
BaseRepresentation
bin11100001001010000…
…111011000100001100
32220000002122100002002
4130021100323010030
5443342332433002
621514415451432
72116612323632
oct341120730414
986002570062
1030220202252
11118a8575269
125a34826b78
132b07ba38a6
1416697a9352
15bbd124002
hex70943b10c

30220202252 has 12 divisors (see below), whose sum is σ = 55996257240. Its totient is φ = 14221271616.

The previous prime is 30220202227. The next prime is 30220202263. The reversal of 30220202252 is 25220202203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222207302 + ... + 222207437.

It is an arithmetic number, because the mean of its divisors is an integer number (4666354770).

Almost surely, 230220202252 is an apocalyptic number.

It is an amenable number.

30220202252 is a deficient number, since it is larger than the sum of its proper divisors (25776054988).

30220202252 is a wasteful number, since it uses less digits than its factorization.

30220202252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444414760 (or 444414758 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 30220202252 its reverse (25220202203), we get a palindrome (55440404455).

The spelling of 30220202252 in words is "thirty billion, two hundred twenty million, two hundred two thousand, two hundred fifty-two".

Divisors: 1 2 4 17 34 68 444414739 888829478 1777658956 7555050563 15110101126 30220202252