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30045230644 = 2211132912231481
BaseRepresentation
bin11011111110110101…
…011101011000110100
32212112220101212011011
4123332311131120310
5443013034340034
621445205322004
72112356150422
oct337665353064
985486355134
1030045230644
1111818827530
1259a6106304
132aaa8706b0
141650460112
15bacab0864
hex6fed5d634

30045230644 has 96 divisors (see below), whose sum is σ = 63996791040. Its totient is φ = 12153523200.

The previous prime is 30045230641. The next prime is 30045230647. The reversal of 30045230644 is 44603254003.

It is an interprime number because it is at equal distance from previous prime (30045230641) and next prime (30045230647).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30045230641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20286384 + ... + 20287864.

It is an arithmetic number, because the mean of its divisors is an integer number (666633240).

Almost surely, 230045230644 is an apocalyptic number.

It is an amenable number.

30045230644 is an abundant number, since it is smaller than the sum of its proper divisors (33951560396).

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

30045230644 is a wasteful number, since it uses less digits than its factorization.

30045230644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 30045230644 its reverse (44603254003), we get a palindrome (74648484647).

The spelling of 30045230644 in words is "thirty billion, forty-five million, two hundred thirty thousand, six hundred forty-four".

Divisors: 1 2 4 11 13 22 26 29 44 52 58 116 143 286 319 377 572 638 754 1223 1276 1481 1508 2446 2962 4147 4892 5924 8294 13453 15899 16291 16588 19253 26906 31798 32582 35467 38506 42949 53812 63596 65164 70934 77012 85898 141868 171796 174889 211783 349778 390137 423566 461071 472439 558337 699556 780274 847132 922142 944878 1116674 1560548 1811263 1844284 1889756 2233348 3622526 5071781 6141707 7245052 10143562 12283414 19923893 20287124 23546419 24566828 39847786 47092838 52526627 79695572 94185676 105053254 210106508 259010609 518021218 577792897 682846151 1036042436 1155585794 1365692302 2311171588 2731384604 7511307661 15022615322 30045230644