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61000111061105 = 581071150485651
BaseRepresentation
bin11011101111010101100011…
…11100110111100001110001
321222222112221121210102122112
431313222301330313201301
530443411211412423410
6333423021505215105
715564053421615656
oct1567526174674161
9258875847712575
1061000111061105
1118489002473937
126a12291931495
132806393b61358
14110c5c780dc2d
1570bb45e56105
hex377ab1f37871

61000111061105 has 8 divisors (see below), whose sum is σ = 73201036673664. Its totient is φ = 48799486582000.

The previous prime is 61000111061081. The next prime is 61000111061117. The reversal of 61000111061105 is 50116011100016.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61000111061105 - 214 = 61000111044721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74837471 + ... + 75648180.

It is an arithmetic number, because the mean of its divisors is an integer number (9150129584208).

Almost surely, 261000111061105 is an apocalyptic number.

It is an amenable number.

61000111061105 is a deficient number, since it is larger than the sum of its proper divisors (12200925612559).

61000111061105 is a wasteful number, since it uses less digits than its factorization.

61000111061105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150566727.

The product of its (nonzero) digits is 180, while the sum is 23.

The spelling of 61000111061105 in words is "sixty-one trillion, one hundred eleven million, sixty-one thousand, one hundred five".

Divisors: 1 5 81071 405355 150485651 752428255 12200022212221 61000111061105