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78080007 = 3115322573
BaseRepresentation
bin1001010011101…
…10100000000111
312102220212122010
410221312200013
5124442030012
611425305303
71635445335
oct451664007
9172825563
1078080007
114008a735
1222195233
131323a4b5
14a526b55
156cc4c3c
hex4a76807

78080007 has 8 divisors (see below), whose sum is σ = 104201584. Its totient is φ = 52005888.

The previous prime is 78080003. The next prime is 78080017. The reversal of 78080007 is 70008087.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78080007 - 22 = 78080003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78080003) 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, 7828 + ... + 14745.

It is an arithmetic number, because the mean of its divisors is an integer number (13025198).

Almost surely, 278080007 is an apocalyptic number.

78080007 is a deficient number, since it is larger than the sum of its proper divisors (26121577).

78080007 is a wasteful number, since it uses less digits than its factorization.

78080007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23729.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 78080007 is about 8836.2892098437. The cubic root of 78080007 is about 427.4119048323.

The spelling of 78080007 in words is "seventy-eight million, eighty thousand, seven".

Divisors: 1 3 1153 3459 22573 67719 26026669 78080007