Search a number
-
+
1979494362 = 23412219101
BaseRepresentation
bin111010111111100…
…1010111111011010
312002221202201210000
41311333022333122
513023222304422
6524231233430
7100024265406
oct16577127732
95087681700
101979494362
1192641145a
12472b18876
13257147a51
1414ac7c106
15b8bb1cac
hex75fcafda

1979494362 has 20 divisors (see below), whose sum is σ = 4435534026. Its totient is φ = 659831400.

The previous prime is 1979494357. The next prime is 1979494393. The reversal of 1979494362 is 2634949791.

1979494362 is a `hidden beast` number, since 1 + 97 + 9 + 494 + 3 + 62 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1604723481 + 374770881 = 40059^2 + 19359^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1979494299 and 1979494308.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6109389 + ... + 6109712.

Almost surely, 21979494362 is an apocalyptic number.

1979494362 is an abundant number, since it is smaller than the sum of its proper divisors (2456039664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1979494362 is a wasteful number, since it uses less digits than its factorization.

1979494362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219115 (or 12219106 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 1979494362 is about 44491.5088752899. The cubic root of 1979494362 is about 1255.6003354164.

The spelling of 1979494362 in words is "one billion, nine hundred seventy-nine million, four hundred ninety-four thousand, three hundred sixty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 12219101 24438202 36657303 73314606 109971909 219943818 329915727 659831454 989747181 1979494362