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30221422152 = 2331259225923
BaseRepresentation
bin11100001001010101…
…100100111001001000
32220000011221022110120
4130021111210321020
5443343141002102
621514501543240
72116625564325
oct341125447110
986004838416
1030221422152
11118a9228849
125a35114b20
132b0820cc1c
141669a05b4c
15bbd2b56bc
hex709564e48

30221422152 has 16 divisors (see below), whose sum is σ = 75553555440. Its totient is φ = 10073807376.

The previous prime is 30221422151. The next prime is 30221422159. The reversal of 30221422152 is 25122412203.

It is a super-2 number, since 2×302214221522 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1259225923 = 30221422152 / (3 + 0 + 2 + 2 + 1 + 4 + 2 + 2 + 1 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (30221422151) 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, 629612938 + ... + 629612985.

It is an arithmetic number, because the mean of its divisors is an integer number (4722097215).

Almost surely, 230221422152 is an apocalyptic number.

It is an amenable number.

30221422152 is an abundant number, since it is smaller than the sum of its proper divisors (45332133288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221422152 is a wasteful number, since it uses less digits than its factorization.

30221422152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259225932 (or 1259225928 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 30221422152 its reverse (25122412203), we get a palindrome (55343834355).

The spelling of 30221422152 in words is "thirty billion, two hundred twenty-one million, four hundred twenty-two thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 1259225923 2518451846 3777677769 5036903692 7555355538 10073807384 15110711076 30221422152