Search a number
-
+
12382838770 = 252230755511
BaseRepresentation
bin10111000100001001…
…10001111111110010
31011221222111101102011
423202010301333302
5200330001320040
65404423113134
7615600251521
oct134204617762
934858441364
1012382838770
115284876055
122496ba27aa
131224577b43
148567d64b8
154c71943ea
hex2e2131ff2

12382838770 has 16 divisors (see below), whose sum is σ = 22290510528. Its totient is φ = 4952824240.

The previous prime is 12382838761. The next prime is 12382838771. The reversal of 12382838770 is 7783828321.

It is a super-2 number, since 2×123828387702 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12382838771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195315 + ... + 250825.

It is an arithmetic number, because the mean of its divisors is an integer number (1393156908).

Almost surely, 212382838770 is an apocalyptic number.

12382838770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12382838770 is a deficient number, since it is larger than the sum of its proper divisors (9907671758).

12382838770 is a wasteful number, since it uses less digits than its factorization.

12382838770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77825.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 12382838770 in words is "twelve billion, three hundred eighty-two million, eight hundred thirty-eight thousand, seven hundred seventy".

Divisors: 1 2 5 10 22307 44614 55511 111022 111535 223070 277555 555110 1238283877 2476567754 6191419385 12382838770