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80447376 = 2432372869
BaseRepresentation
bin1001100101110…
…00011110010000
312121101011001110
410302320132100
5131043304001
611552133320
71664535312
oct462703620
9177334043
1080447376
1141457339
1222b37240
1313888bc9
14a9817b2
1570e13d6
hex4cb8790

80447376 has 40 divisors (see below), whose sum is σ = 216861120. Its totient is φ = 25649536.

The previous prime is 80447347. The next prime is 80447377. The reversal of 80447376 is 67374408.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80447377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35331 + ... + 37538.

It is an arithmetic number, because the mean of its divisors is an integer number (5421528).

Almost surely, 280447376 is an apocalyptic number.

It is an amenable number.

80447376 is an abundant number, since it is smaller than the sum of its proper divisors (136413744).

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

80447376 is a wasteful number, since it uses less digits than its factorization.

80447376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72903 (or 72897 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 80447376 is about 8969.2461221666. The cubic root of 80447376 is about 431.6886473968.

The spelling of 80447376 in words is "eighty million, four hundred forty-seven thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 16 23 24 46 48 69 92 138 184 276 368 552 1104 72869 145738 218607 291476 437214 582952 874428 1165904 1675987 1748856 3351974 3497712 5027961 6703948 10055922 13407896 20111844 26815792 40223688 80447376