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80535442 = 2137143627
BaseRepresentation
bin1001100110011…
…01111110010010
312121112121212011
410303031332102
5131104113232
611554053134
71665353131
oct463157622
9177477764
1080535442
1141507519
1222b7a1aa
13138ba010
14a9a5918
15710c547
hex4ccdf92

80535442 has 16 divisors (see below), whose sum is σ = 131931072. Its totient is φ = 36645840.

The previous prime is 80535419. The next prime is 80535449. The reversal of 80535442 is 24453508.

It is not an unprimeable number, because it can be changed into a prime (80535449) 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, 19968 + ... + 23659.

It is an arithmetic number, because the mean of its divisors is an integer number (8245692).

Almost surely, 280535442 is an apocalyptic number.

80535442 is a deficient number, since it is larger than the sum of its proper divisors (51395630).

80535442 is a wasteful number, since it uses less digits than its factorization.

80535442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43713.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 80535442 is about 8974.1541105555. The cubic root of 80535442 is about 431.8461135992.

The spelling of 80535442 in words is "eighty million, five hundred thirty-five thousand, four hundred forty-two".

Divisors: 1 2 13 26 71 142 923 1846 43627 87254 567151 1134302 3097517 6195034 40267721 80535442