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30021130244 = 2274759386651
BaseRepresentation
bin11011111101011001…
…100001100000000100
32212111020001102121202
4123331121201200010
5442440402131434
621442545002032
72111644253030
oct337531414004
985436042552
1030021130244
1111806166546
12599a023318
132aa5882ac1
14164b1891c0
15baa8eea7e
hex6fd661804

30021130244 has 48 divisors (see below), whose sum is σ = 62359234560. Its totient is φ = 12378986400.

The previous prime is 30021130241. The next prime is 30021130261. The reversal of 30021130244 is 44203112003.

It is a super-2 number, since 2×300211302442 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30021130241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115682 + ... + 270969.

It is an arithmetic number, because the mean of its divisors is an integer number (1299150720).

Almost surely, 230021130244 is an apocalyptic number.

It is an amenable number.

30021130244 is an abundant number, since it is smaller than the sum of its proper divisors (32338104316).

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

30021130244 is a wasteful number, since it uses less digits than its factorization.

30021130244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386768 (or 386766 counting only the distinct ones).

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

Adding to 30021130244 its reverse (44203112003), we get a palindrome (74224242247).

The spelling of 30021130244 in words is "thirty billion, twenty-one million, one hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 47 59 94 118 188 236 329 413 658 826 1316 1652 2773 5546 11092 19411 38822 77644 386651 773302 1546604 2706557 5413114 10826228 18172597 22812409 36345194 45624818 72690388 91249636 127208179 159686863 254416358 319373726 508832716 638747452 1072183223 2144366446 4288732892 7505282561 15010565122 30021130244