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80296289956 = 2219274572
BaseRepresentation
bin100101011001000001…
…0000010011010100100
321200020222122011102001
41022302002002122210
52303421322234311
6100515420055044
75541550126501
oct1126202023244
9250228564361
1080296289956
1131065187113
121368b094484
13775863400c
143c5a2644a8
15214e4e84c1
hex12b20826a4

80296289956 has 27 divisors (see below), whose sum is σ = 148323356769. Its totient is φ = 38029984128.

The previous prime is 80296289951. The next prime is 80296290017. The reversal of 80296289956 is 65998269208.

The square root of 80296289956 is 283366.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 24214472100 + 56081817856 = 155610^2 + 236816^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80296289951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10764180 + ... + 10771636.

Almost surely, 280296289956 is an apocalyptic number.

80296289956 is the 283366-th square number.

It is an amenable number.

80296289956 is a deficient number, since it is larger than the sum of its proper divisors (68027066813).

80296289956 is an frugal number, since it uses more digits than its factorization.

80296289956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14956 (or 7478 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 64.

Multiplying 80296289956 by its sum of digits (64), we get a square (5138962557184 = 22669282).

The spelling of 80296289956 in words is "eighty billion, two hundred ninety-six million, two hundred eighty-nine thousand, nine hundred fifty-six".

Divisors: 1 2 4 19 38 76 361 722 1444 7457 14914 29828 141683 283366 566732 2691977 5383954 10767908 55606849 111213698 222427396 1056530131 2113060262 4226120524 20074072489 40148144978 80296289956