Search a number
-
+
1389113529990 = 2351931367917539
BaseRepresentation
bin10100001101101101100…
…111100101011010000110
311220210112201011211002220
4110031231213211122012
5140224401030424430
62542052215513210
7202234346120304
oct24155547453206
94823481154086
101389113529990
1149613541223a
121a5277388806
13a0cba37c544
144b33a84d274
1526202549110
hex1436d9e5686

1389113529990 has 64 divisors (see below), whose sum is σ = 3351582489600. Its totient is φ = 368462997504.

The previous prime is 1389113529971. The next prime is 1389113530061. The reversal of 1389113529990 is 999253119831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79192641 + ... + 79210179.

It is an arithmetic number, because the mean of its divisors is an integer number (52368476400).

Almost surely, 21389113529990 is an apocalyptic number.

1389113529990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1389113529990 is an abundant number, since it is smaller than the sum of its proper divisors (1962468959610).

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

1389113529990 is a wasteful number, since it uses less digits than its factorization.

1389113529990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31421.

The product of its (nonzero) digits is 4723920, while the sum is 60.

The spelling of 1389113529990 in words is "one trillion, three hundred eighty-nine billion, one hundred thirteen million, five hundred twenty-nine thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 193 386 579 965 1158 1930 2895 5790 13679 17539 27358 35078 41037 52617 68395 82074 87695 105234 136790 175390 205185 263085 410370 526170 2640047 3385027 5280094 6770054 7920141 10155081 13200235 15840282 16925135 20310162 26400470 33850270 39600705 50775405 79201410 101550810 239915981 479831962 719747943 1199579905 1439495886 2399159810 3598739715 7197479430 46303784333 92607568666 138911352999 231518921665 277822705998 463037843330 694556764995 1389113529990