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78300713 = 451917327
BaseRepresentation
bin1001010101011…
…00011000101001
312110100002101102
410222230120221
5130021110323
611434131145
71640354651
oct452543051
9173302342
1078300713
1140220537
1222280ab5
13132b6aaa
14a583361
156d1a328
hex4aac629

78300713 has 4 divisors (see below), whose sum is σ = 78322560. Its totient is φ = 78278868.

The previous prime is 78300709. The next prime is 78300727. The reversal of 78300713 is 31700387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78300713 - 22 = 78300709 is a prime.

It is a super-2 number, since 2×783007132 = 12262003312616738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78300743) 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, 4145 + ... + 13182.

It is an arithmetic number, because the mean of its divisors is an integer number (19580640).

Almost surely, 278300713 is an apocalyptic number.

It is an amenable number.

78300713 is a deficient number, since it is larger than the sum of its proper divisors (21847).

78300713 is a wasteful number, since it uses less digits than its factorization.

78300713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21846.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 78300713 is about 8848.7690104330. The cubic root of 78300713 is about 427.8142426940.

The spelling of 78300713 in words is "seventy-eight million, three hundred thousand, seven hundred thirteen".

Divisors: 1 4519 17327 78300713