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20767045005 = 335724373009
BaseRepresentation
bin10011010101110011…
…111111010110001101
31222121021212012012000
4103111303333112031
5320012330420010
613312405502513
71333424653500
oct232563772615
958537765160
1020767045005
118897501313
124036a11a39
131c5c58c815
141010113137
158182837c0
hex4d5cff58d

20767045005 has 96 divisors (see below), whose sum is σ = 43946179200. Its totient is φ = 9272600064.

The previous prime is 20767044941. The next prime is 20767045063. The reversal of 20767045005 is 50054076702.

It is not a de Polignac number, because 20767045005 - 26 = 20767044941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 247941 + ... + 320949.

It is an arithmetic number, because the mean of its divisors is an integer number (457772700).

Almost surely, 220767045005 is an apocalyptic number.

It is an amenable number.

20767045005 is an abundant number, since it is smaller than the sum of its proper divisors (23179134195).

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

20767045005 is a wasteful number, since it uses less digits than its factorization.

20767045005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73080 (or 73067 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 20767045005 in words is "twenty billion, seven hundred sixty-seven million, forty-five thousand, five".

Divisors: 1 3 5 7 9 15 21 27 35 43 45 49 63 105 129 135 147 189 215 245 301 315 387 441 645 735 903 945 1161 1323 1505 1935 2107 2205 2709 4515 5805 6321 6615 8127 10535 13545 18963 31605 40635 56889 73009 94815 219027 284445 365045 511063 657081 1095135 1533189 1971243 2555315 3139387 3285405 3577441 4599567 7665945 9418161 9856215 10732323 13798701 15696935 17887205 21975709 22997835 28254483 32196969 47090805 53661615 65927127 68993505 84763449 96590907 109878545 141272415 153829963 160984845 197781381 329635635 423817245 461489889 482954535 593344143 769149815 988906905 1384469667 2307449445 2966720715 4153409001 6922348335 20767045005