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30612482638 = 223411133792
BaseRepresentation
bin11100100000101001…
…010110101001001110
32221000102210020121021
4130200221112221032
51000143243421023
622021351424354
72132414544343
oct344051265116
987012706537
1030612482638
1111a89a48331
125b240850ba
132b6b24156a
1416a59207ca
15be27b035d
hex720a56a4e

30612482638 has 48 divisors (see below), whose sum is σ = 49649223456. Its totient is φ = 14119902720.

The previous prime is 30612482611. The next prime is 30612482653. The reversal of 30612482638 is 83628421603.

It is a junction number, because it is equal to n+sod(n) for n = 30612482594 and 30612482603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80771533 + ... + 80771911.

It is an arithmetic number, because the mean of its divisors is an integer number (1034358822).

Almost surely, 230612482638 is an apocalyptic number.

30612482638 is a deficient number, since it is larger than the sum of its proper divisors (19036740818).

30612482638 is a wasteful number, since it uses less digits than its factorization.

30612482638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 30612482638 in words is "thirty billion, six hundred twelve million, four hundred eighty-two thousand, six hundred thirty-eight".

Divisors: 1 2 23 41 46 82 113 226 379 758 943 1886 2599 4633 5198 8717 9266 15539 17434 31078 42827 85654 106559 143641 213118 287282 357397 714794 985021 1755907 1970042 3303743 3511814 5889281 6607486 11778562 16231433 32462866 40385861 80771722 135453463 270906926 373322959 665488753 746645918 1330977506 15306241319 30612482638