Search a number
-
+
1230444575809 = 12738334617309
BaseRepresentation
bin10001111001111100001…
…101100011110001000001
311100121222210112210201021
4101321330031203301001
5130124422302411214
62341131453305441
7154616364220201
oct21717415436101
94317883483637
101230444575809
11434912981549
1217a575495281
138c051aca8c7
14437a7a1c401
1522017880924
hex11e7c363c41

1230444575809 has 16 divisors (see below), whose sum is σ = 1243900477440. Its totient is φ = 1217050349760.

The previous prime is 1230444575743. The next prime is 1230444575813. The reversal of 1230444575809 is 9085754440321.

It is a cyclic number.

It is not a de Polignac number, because 1230444575809 - 213 = 1230444567617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230444575879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168342847 + ... + 168350155.

It is an arithmetic number, because the mean of its divisors is an integer number (77743779840).

Almost surely, 21230444575809 is an apocalyptic number.

It is an amenable number.

1230444575809 is a deficient number, since it is larger than the sum of its proper divisors (13455901631).

1230444575809 is a wasteful number, since it uses less digits than its factorization.

1230444575809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11280.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 1230444575809 in words is "one trillion, two hundred thirty billion, four hundred forty-four million, five hundred seventy-five thousand, eight hundred nine".

Divisors: 1 127 383 3461 7309 48641 439547 928243 1325563 2799347 25296449 168346501 355517069 3212649023 9688539967 1230444575809