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80377744 = 245023609
BaseRepresentation
bin1001100101001…
…11011110010000
312121020121112111
410302213132100
5131034041434
611550435104
71664125306
oct462473620
9177217474
1080377744
1141409a97
1222b02a94
13138632c5
14a964276
1570ca964
hex4ca7790

80377744 has 10 divisors (see below), whose sum is σ = 155731910. Its totient is φ = 40188864.

The previous prime is 80377721. The next prime is 80377757. The reversal of 80377744 is 44777308.

It can be written as a sum of positive squares in only one way, i.e., 56250000 + 24127744 = 7500^2 + 4912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80377697 and 80377706.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2511789 + ... + 2511820.

It is an arithmetic number, because the mean of its divisors is an integer number (15573191).

Almost surely, 280377744 is an apocalyptic number.

It is an amenable number.

80377744 is a deficient number, since it is larger than the sum of its proper divisors (75354166).

80377744 is a wasteful number, since it uses less digits than its factorization.

80377744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023617 (or 5023611 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 80377744 is about 8965.3635732189. The cubic root of 80377744 is about 431.5640606907.

The spelling of 80377744 in words is "eighty million, three hundred seventy-seven thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 5023609 10047218 20094436 40188872 80377744