Search a number
-
+
7074780109 = 28324999223
BaseRepresentation
bin1101001011011000…
…01001001111001101
3200021001110001210221
412211230021033031
5103442120430414
63130005031341
7340214432035
oct64554111715
920231401727
107074780109
113000590011
1214553b5551
13889959427
144b18648c5
152b618b224
hex1a5b093cd

7074780109 has 4 divisors (see below), whose sum is σ = 7099779616. Its totient is φ = 7049780604.

The previous prime is 7074780091. The next prime is 7074780121. The reversal of 7074780109 is 9010874707.

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: 9010874707 = 56931582799.

It is a cyclic number.

It is not a de Polignac number, because 7074780109 - 25 = 7074780077 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 (7074780179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12499329 + ... + 12499894.

It is an arithmetic number, because the mean of its divisors is an integer number (1774944904).

Almost surely, 27074780109 is an apocalyptic number.

It is an amenable number.

7074780109 is a deficient number, since it is larger than the sum of its proper divisors (24999507).

7074780109 is a wasteful number, since it uses less digits than its factorization.

7074780109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24999506.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 7074780109 is about 84111.7120798287. The cubic root of 7074780109 is about 1919.7189357276.

The spelling of 7074780109 in words is "seven billion, seventy-four million, seven hundred eighty thousand, one hundred nine".

Divisors: 1 283 24999223 7074780109