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61415071410671 = 11193744641177907
BaseRepresentation
bin11011111011011010011111…
…00000111110100111101111
322001110020000220220022011022
431331231033200332213233
531022211031240120141
6334341405545444355
715636043502445326
oct1575551740764757
9261406026808138
1061415071410671
1118628a927a62a0
126a7a79b1a06bb
132836554a45034
1411247108350bd
15717830e30b4b
hex37db4f83e9ef

61415071410671 has 32 divisors (see below), whose sum is σ = 72432580696320. Its totient is φ = 51462370483200.

The previous prime is 61415071410647. The next prime is 61415071410689. The reversal of 61415071410671 is 17601417051416.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61415071410671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61415071410071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345119900 + ... + 345297806.

It is an arithmetic number, because the mean of its divisors is an integer number (2263518146760).

Almost surely, 261415071410671 is an apocalyptic number.

61415071410671 is a deficient number, since it is larger than the sum of its proper divisors (11017509285649).

61415071410671 is a wasteful number, since it uses less digits than its factorization.

61415071410671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222615.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 61415071410671 in words is "sixty-one trillion, four hundred fifteen billion, seventy-one million, four hundred ten thousand, six hundred seventy-one".

Divisors: 1 11 19 37 209 407 703 7733 44641 177907 491051 848179 1651717 1956977 3380233 6582559 9329969 18168887 31382623 37182563 72408149 125068621 345208853 1375754831 7941946387 87361410257 150896981353 293852016319 1659866794883 3232372179509 5583188310061 61415071410671