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80205020102 = 2371796055037
BaseRepresentation
bin100101010110010010…
…1110111101111000110
321200000121220011201002
41022230211313233012
52303224441120402
6100502355533302
75536361264564
oct1125445675706
9250017804632
1080205020102
1131018708789
12136645ba232
13774275909c
143c4c0a6a34
1521464ba602
hex12ac977bc6

80205020102 has 16 divisors (see below), whose sum is σ = 124249379760. Its totient is φ = 38800670688.

The previous prime is 80205020099. The next prime is 80205020113. The reversal of 80205020102 is 20102050208.

It is a congruent 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, 3014273 + ... + 3040764.

It is an arithmetic number, because the mean of its divisors is an integer number (7765586235).

Almost surely, 280205020102 is an apocalyptic number.

80205020102 is a deficient number, since it is larger than the sum of its proper divisors (44044359658).

80205020102 is a wasteful number, since it uses less digits than its factorization.

80205020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055255.

The product of its (nonzero) digits is 320, while the sum is 20.

The spelling of 80205020102 in words is "eighty billion, two hundred five million, twenty thousand, one hundred two".

Divisors: 1 2 37 74 179 358 6623 13246 6055037 12110074 224036369 448072738 1083851623 2167703246 40102510051 80205020102