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80409623630 = 2575321673753
BaseRepresentation
bin100101011100011001…
…0010111110001001110
321200112212220002222112
41022320302113301032
52304134330424010
6100534545144022
75544424344410
oct1127062276116
9250485802875
1080409623630
1131113155406
121370102b012
137775c6586b
143c6b3269b0
152159433a05
hex12b8c97c4e

80409623630 has 32 divisors (see below), whose sum is σ = 168535111104. Its totient is φ = 27048842496.

The previous prime is 80409623629. The next prime is 80409623669. The reversal of 80409623630 is 3632690408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10833167 + ... + 10840586.

It is an arithmetic number, because the mean of its divisors is an integer number (5266722222).

Almost surely, 280409623630 is an apocalyptic number.

80409623630 is an abundant number, since it is smaller than the sum of its proper divisors (88125487474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80409623630 is a wasteful number, since it uses less digits than its factorization.

80409623630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21673820.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 80409623630 in words is "eighty billion, four hundred nine million, six hundred twenty-three thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1855 3710 21673753 43347506 108368765 151716271 216737530 303432542 758581355 1148708909 1517162710 2297417818 5743544545 8040962363 11487089090 16081924726 40204811815 80409623630