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80540007 = 326846669
BaseRepresentation
bin1001100110011…
…11000101100111
312121112212010020
410303033011213
5131104240012
611554130223
71665402342
oct463170547
9177485106
1080540007
114150a999
1222b80973
13138bc112
14a9a7459
15710da8c
hex4ccf167

80540007 has 4 divisors (see below), whose sum is σ = 107386680. Its totient is φ = 53693336.

The previous prime is 80539969. The next prime is 80540017. The reversal of 80540007 is 70004508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80540007 - 218 = 80277863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80540017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13423332 + ... + 13423337.

It is an arithmetic number, because the mean of its divisors is an integer number (26846670).

Almost surely, 280540007 is an apocalyptic number.

80540007 is a deficient number, since it is larger than the sum of its proper divisors (26846673).

80540007 is a wasteful number, since it uses less digits than its factorization.

80540007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26846672.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 80540007 is about 8974.4084484717. The cubic root of 80540007 is about 431.8542729066.

The spelling of 80540007 in words is "eighty million, five hundred forty thousand, seven".

Divisors: 1 3 26846669 80540007