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80606007776 = 257359848249
BaseRepresentation
bin100101100010001111…
…1100001000111100000
321201001120102110101102
41023010133201013200
52310040114222101
6101010242253532
75552330522060
oct1130437410740
9251046373342
1080606007776
1131203a98758
12137569572a8
1377a78550b8
143c894473a0
15216b7c686b
hex12c47e11e0

80606007776 has 24 divisors (see below), whose sum is σ = 181363518000. Its totient is φ = 34545431808.

The previous prime is 80606007767. The next prime is 80606007793. The reversal of 80606007776 is 67770060608.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80606007776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179923901 + ... + 179924348.

It is an arithmetic number, because the mean of its divisors is an integer number (7556813250).

Almost surely, 280606007776 is an apocalyptic number.

It is an amenable number.

80606007776 is an abundant number, since it is smaller than the sum of its proper divisors (100757510224).

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

80606007776 is a wasteful number, since it uses less digits than its factorization.

80606007776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359848266 (or 359848258 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 80606007776 in words is "eighty billion, six hundred six million, seven thousand, seven hundred seventy-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 359848249 719696498 1439392996 2518937743 2878785992 5037875486 5757571984 10075750972 11515143968 20151501944 40303003888 80606007776