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805623820041 = 31773921375569
BaseRepresentation
bin10111011100100101110…
…10111110111100001001
32212000110022100101202210
423232102322332330021
5101144404144220131
61414033134215333
7112130052324555
oct13562272767411
92760408311683
10805623820041
11290732709a57
12110175954549
135ac7c123c41
142adc7210865
1515e51dbe146
hexbb92ebef09

805623820041 has 16 divisors (see below), whose sum is σ = 1138890369600. Its totient is φ = 504805413888.

The previous prime is 805623820031. The next prime is 805623820087. The reversal of 805623820041 is 140028326508.

It is not a de Polignac number, because 805623820041 - 214 = 805623803657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805623820031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10650096 + ... + 10725473.

It is an arithmetic number, because the mean of its divisors is an integer number (71180648100).

Almost surely, 2805623820041 is an apocalyptic number.

It is an amenable number.

805623820041 is a deficient number, since it is larger than the sum of its proper divisors (333266549559).

805623820041 is a wasteful number, since it uses less digits than its factorization.

805623820041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21376328.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 805623820041 in words is "eight hundred five billion, six hundred twenty-three million, eight hundred twenty thousand, forty-one".

Divisors: 1 3 17 51 739 2217 12563 37689 21375569 64126707 363384673 1090154019 15796545491 47389636473 268541273347 805623820041