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80354834 = 2741139991
BaseRepresentation
bin1001100101000…
…01111000010010
312121012110002222
410302201320102
5131032323314
611550141042
71664001440
oct462417022
9177173088
1080354834
11413a385a
1222ab1782
1313855a51
14a959b90
1570c3c8e
hex4ca1e12

80354834 has 16 divisors (see below), whose sum is σ = 141111936. Its totient is φ = 33597600.

The previous prime is 80354803. The next prime is 80354839. The reversal of 80354834 is 43845308.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80354794 and 80354803.

It is not an unprimeable number, because it can be changed into a prime (80354839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69422 + ... + 70569.

It is an arithmetic number, because the mean of its divisors is an integer number (8819496).

Almost surely, 280354834 is an apocalyptic number.

80354834 is a deficient number, since it is larger than the sum of its proper divisors (60757102).

80354834 is a wasteful number, since it uses less digits than its factorization.

80354834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140041.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 80354834 is about 8964.0857871843. The cubic root of 80354834 is about 431.5230540154.

The spelling of 80354834 in words is "eighty million, three hundred fifty-four thousand, eight hundred thirty-four".

Divisors: 1 2 7 14 41 82 287 574 139991 279982 979937 1959874 5739631 11479262 40177417 80354834