[go: up one dir, main page]

Search a number
-
+
2780313 = 31575903
BaseRepresentation
bin1010100110110010011001
312020020212120
422212302121
51202432223
6135331453
732426604
oct12466231
95206776
102780313
111629988
12b20b89
13764673
1452533b
1539dbe3
hex2a6c99

2780313 has 8 divisors (see below), whose sum is σ = 3731328. Its totient is φ = 1841424.

The previous prime is 2780303. The next prime is 2780329. The reversal of 2780313 is 3130872.

2780313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2780313 - 210 = 2779289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2780303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2481 + ... + 3422.

It is an arithmetic number, because the mean of its divisors is an integer number (466416).

22780313 is an apocalyptic number.

It is an amenable number.

2780313 is a deficient number, since it is larger than the sum of its proper divisors (951015).

2780313 is a wasteful number, since it uses less digits than its factorization.

2780313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2780313 is about 1667.4270598740. The cubic root of 2780313 is about 140.6148636644.

The spelling of 2780313 in words is "two million, seven hundred eighty thousand, three hundred thirteen".

Divisors: 1 3 157 471 5903 17709 926771 2780313