Search a number
-
+
1230213104440 = 235234331097399
BaseRepresentation
bin10001111001101110011…
…010100100001100111000
311100121101122222211200121
4101321232122210030320
5130123434023320230
62341052504143024
7154610553565435
oct21715632441470
94317348884617
101230213104440
114348042536a1
1217a50ba67a74
138c015b749b8
1443784da6b8c
15220023ab77a
hex11e6e6a4338

1230213104440 has 64 divisors (see below), whose sum is σ = 2955496896000. Its totient is φ = 459743932032.

The previous prime is 1230213104389. The next prime is 1230213104479. The reversal of 1230213104440 is 444013120321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15509140 + ... + 15588259.

It is an arithmetic number, because the mean of its divisors is an integer number (46179639000).

Almost surely, 21230213104440 is an apocalyptic number.

1230213104440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230213104440 is an abundant number, since it is smaller than the sum of its proper divisors (1725283791560).

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

1230213104440 is a wasteful number, since it uses less digits than its factorization.

1230213104440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31097476 (or 31097472 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1230213104440 its reverse (444013120321), we get a palindrome (1674226224761).

The spelling of 1230213104440 in words is "one trillion, two hundred thirty billion, two hundred thirteen million, one hundred four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 23 40 43 46 86 92 115 172 184 215 230 344 430 460 860 920 989 1720 1978 3956 4945 7912 9890 19780 39560 31097399 62194798 124389596 155486995 248779192 310973990 621947980 715240177 1243895960 1337188157 1430480354 2674376314 2860960708 3576200885 5348752628 5721921416 6685940785 7152401770 10697505256 13371881570 14304803540 26743763140 28609607080 30755327611 53487526280 61510655222 123021310444 153776638055 246042620888 307553276110 615106552220 1230213104440