Search a number
-
+
78076533 = 326025511
BaseRepresentation
bin1001010011101…
…01101001110101
312102220200212110
410221311221311
5124441422113
611425241233
71635432243
oct451655165
9172820773
1078076533
1140088067
1222193219
1313238a42
14a525793
156cc3bc3
hex4a75a75

78076533 has 4 divisors (see below), whose sum is σ = 104102048. Its totient is φ = 52051020.

The previous prime is 78076517. The next prime is 78076573. The reversal of 78076533 is 33567087.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33567087 = 311189029.

It is not a de Polignac number, because 78076533 - 24 = 78076517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78076491 and 78076500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78076573) 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, 13012753 + ... + 13012758.

It is an arithmetic number, because the mean of its divisors is an integer number (26025512).

Almost surely, 278076533 is an apocalyptic number.

It is an amenable number.

78076533 is a deficient number, since it is larger than the sum of its proper divisors (26025515).

78076533 is a wasteful number, since it uses less digits than its factorization.

78076533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26025514.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 78076533 is about 8836.0926319273. The cubic root of 78076533 is about 427.4055658174.

The spelling of 78076533 in words is "seventy-eight million, seventy-six thousand, five hundred thirty-three".

Divisors: 1 3 26025511 78076533