Search a number
-
+
1974380356 = 2213217092
BaseRepresentation
bin111010110101110…
…1010011101000100
312002121010220200101
41311223222131010
513020420132411
6523525453444
766632645644
oct16553523504
95077126611
101974380356
11923539203
12471271284
13256077100
1414a30a524
15b85018c1
hex75aea744

1974380356 has 27 divisors (see below), whose sum is σ = 3743582871. Its totient is φ = 910719264.

The previous prime is 1974380341. The next prime is 1974380363. The reversal of 1974380356 is 6530834791.

The square root of 1974380356 is 44434.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 873202500 + 1101177856 = 29550^2 + 33184^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 1154430 + ... + 1156138.

Almost surely, 21974380356 is an apocalyptic number.

1974380356 is the 44434-th square number.

It is an amenable number.

1974380356 is a deficient number, since it is larger than the sum of its proper divisors (1769202515).

1974380356 is an equidigital number, since it uses as much as digits as its factorization.

1974380356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The cubic root of 1974380356 is about 1254.5181255044.

The spelling of 1974380356 in words is "one billion, nine hundred seventy-four million, three hundred eighty thousand, three hundred fifty-six".

Divisors: 1 2 4 13 26 52 169 338 676 1709 3418 6836 22217 44434 88868 288821 577642 1155284 2920681 5841362 11682724 37968853 75937706 151875412 493595089 987190178 1974380356