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1005005050005 = 351149711122527
BaseRepresentation
bin11101001111111101111…
…10000001000010010101
310120002002112022022100110
432213332332001002111
5112431222243100010
62045405402033233
7132415650655365
oct16477676010225
93502075268313
101005005050005
11358247172060
1214293a1a8819
1373a051a4ba8
14368dd0609a5
151b220d69120
hexe9fef81095

1005005050005 has 32 divisors (see below), whose sum is σ = 1754240237568. Its totient is φ = 487261396800.

The previous prime is 1005005050001. The next prime is 1005005050031. The reversal of 1005005050005 is 5000505005001.

It is not a de Polignac number, because 1005005050005 - 22 = 1005005050001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005005050001) 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, 8141052 + ... + 8263578.

It is an arithmetic number, because the mean of its divisors is an integer number (54820007424).

Almost surely, 21005005050005 is an apocalyptic number.

1005005050005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1005005050005 is a deficient number, since it is larger than the sum of its proper divisors (749235187563).

1005005050005 is a wasteful number, since it uses less digits than its factorization.

1005005050005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172257.

The product of its (nonzero) digits is 625, while the sum is 21.

The spelling of 1005005050005 in words is "one trillion, five billion, five million, fifty thousand, five".

Divisors: 1 3 5 11 15 33 55 165 49711 122527 149133 248555 367581 546821 612635 745665 1347797 1640463 1837905 2734105 4043391 6738985 8202315 20216955 6090939697 18272819091 30454698485 67000336667 91364095455 201001010001 335001683335 1005005050005