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1230155113 = 11313607493
BaseRepresentation
bin100100101010010…
…1010110101101001
310011201202100120111
41021110222311221
510004404430423
6322022254321
742325101025
oct11124526551
93151670514
101230155113
11581432820
122a3b873a1
13167b21c45
14b953d385
1572ee560d
hex4952ad69

1230155113 has 8 divisors (see below), whose sum is σ = 1385277696. Its totient is φ = 1082247600.

The previous prime is 1230155093. The next prime is 1230155117. The reversal of 1230155113 is 3115510321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230155113 - 25 = 1230155081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230155117) 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, 1803406 + ... + 1804087.

It is an arithmetic number, because the mean of its divisors is an integer number (173159712).

Almost surely, 21230155113 is an apocalyptic number.

It is an amenable number.

1230155113 is a deficient number, since it is larger than the sum of its proper divisors (155122583).

1230155113 is a wasteful number, since it uses less digits than its factorization.

1230155113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607535.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1230155113 is about 35073.5671553379. The cubic root of 1230155113 is about 1071.4863069493.

Adding to 1230155113 its reverse (3115510321), we get a palindrome (4345665434).

The spelling of 1230155113 in words is "one billion, two hundred thirty million, one hundred fifty-five thousand, one hundred thirteen".

Divisors: 1 11 31 341 3607493 39682423 111832283 1230155113