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5780978069 = 27312116799
BaseRepresentation
bin1010110001001001…
…01011100110010101
3112220212221010001212
411120210223212111
543314412244234
62353350231205
7263154334316
oct53044534625
915825833055
105780978069
1124a7236429
121154055505
137118b15a9
143cbab860d
1523c7c25ce
hex15892b995

5780978069 has 4 divisors (see below), whose sum is σ = 5783097600. Its totient is φ = 5778858540.

The previous prime is 5780978039. The next prime is 5780978081. The reversal of 5780978069 is 9608790875.

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 5780978069 - 212 = 5780973973 is a prime.

It is a super-2 number, since 2×57809780692 = 66839414868517937522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5780977999 and 5780978017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5780978039) 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, 1055669 + ... + 1061130.

It is an arithmetic number, because the mean of its divisors is an integer number (1445774400).

Almost surely, 25780978069 is an apocalyptic number.

It is an amenable number.

5780978069 is a deficient number, since it is larger than the sum of its proper divisors (2119531).

5780978069 is a wasteful number, since it uses less digits than its factorization.

5780978069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119530.

The product of its (nonzero) digits is 7620480, while the sum is 59.

The square root of 5780978069 is about 76032.7434004587. The cubic root of 5780978069 is about 1794.7354476490.

The spelling of 5780978069 in words is "five billion, seven hundred eighty million, nine hundred seventy-eight thousand, sixty-nine".

Divisors: 1 2731 2116799 5780978069