Search a number
-
+
1790994772 = 22763964099
BaseRepresentation
bin110101011000000…
…0110100101010100
311121211001221221201
41222300012211110
512131443313042
6453415122244
762245130050
oct15260064524
94554057851
101790994772
11839a73976
1241b973384
13227089228
1412dc10c60
15a737a1b7
hex6ac06954

1790994772 has 12 divisors (see below), whose sum is σ = 3581989600. Its totient is φ = 767569176.

The previous prime is 1790994719. The next prime is 1790994773. The reversal of 1790994772 is 2774990971.

1790994772 is an admirable number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1790994773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31982022 + ... + 31982077.

Almost surely, 21790994772 is an apocalyptic number.

It is an amenable number.

1790994772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1790994772 is a wasteful number, since it uses less digits than its factorization.

1790994772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63964110 (or 63964108 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 55.

The square root of 1790994772 is about 42320.1461717702. The cubic root of 1790994772 is about 1214.4084283931.

The spelling of 1790994772 in words is "one billion, seven hundred ninety million, nine hundred ninety-four thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 63964099 127928198 255856396 447748693 895497386 1790994772