Search a number
-
+
78052123 = 618771459
BaseRepresentation
bin1001010011011…
…11101100011011
312102212110101101
410221233230123
5124440131443
611424532231
71635301132
oct451575433
9172773341
1078052123
1140070796
1222181077
131322a8b6
14a51a919
156cbb84d
hex4a6fb1b

78052123 has 8 divisors (see below), whose sum is σ = 79476560. Its totient is φ = 76632480.

The previous prime is 78052109. The next prime is 78052127. The reversal of 78052123 is 32125087.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-78052123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78052091 and 78052100.

It is not an unprimeable number, because it can be changed into a prime (78052127) 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, 52768 + ... + 54226.

It is an arithmetic number, because the mean of its divisors is an integer number (9934570).

Almost surely, 278052123 is an apocalyptic number.

78052123 is a deficient number, since it is larger than the sum of its proper divisors (1424437).

78052123 is a wasteful number, since it uses less digits than its factorization.

78052123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 78052123 is about 8834.7112573077. The cubic root of 78052123 is about 427.3610195373.

The spelling of 78052123 in words is "seventy-eight million, fifty-two thousand, one hundred twenty-three".

Divisors: 1 61 877 1459 53497 88999 1279543 78052123