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20606912448 = 263281381949
BaseRepresentation
bin10011001100010001…
…001000011111000000
31222012010112121121120
4103030101020133000
5314200332144243
613244445352240
71326441602643
oct231421103700
958163477546
1020606912448
118815079361
123bb1268680
131c35353925
14dd6b4ba5a
158091a1c83
hex4cc4487c0

20606912448 has 56 divisors (see below), whose sum is σ = 54716629200. Its totient is φ = 6844508160.

The previous prime is 20606912437. The next prime is 20606912471. The reversal of 20606912448 is 84421960602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137023 + ... + 244926.

Almost surely, 220606912448 is an apocalyptic number.

It is an amenable number.

20606912448 is an abundant number, since it is smaller than the sum of its proper divisors (34109716752).

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

20606912448 is a wasteful number, since it uses less digits than its factorization.

20606912448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382245 (or 382235 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 20606912448 in words is "twenty billion, six hundred six million, nine hundred twelve thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 281 562 843 1124 1686 2248 3372 4496 6744 8992 13488 17984 26976 53952 381949 763898 1145847 1527796 2291694 3055592 4583388 6111184 9166776 12222368 18333552 24444736 36667104 73334208 107327669 214655338 321983007 429310676 643966014 858621352 1287932028 1717242704 2575864056 3434485408 5151728112 6868970816 10303456224 20606912448