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1230255111 = 31921583423
BaseRepresentation
bin100100101010100…
…0011010000000111
310011201221102202010
41021111003100013
510004421130421
6322024345303
742325665411
oct11125032007
93151842663
101230255111
115814a0968
122a4015233
13167b58607
14b95679b1
1573015076
hex49543407

1230255111 has 8 divisors (see below), whose sum is σ = 1726673920. Its totient is φ = 777003192.

The previous prime is 1230255109. The next prime is 1230255121. The reversal of 1230255111 is 1115520321.

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

It is not a de Polignac number, because 1230255111 - 21 = 1230255109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230255101) 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, 10791655 + ... + 10791768.

It is an arithmetic number, because the mean of its divisors is an integer number (215834240).

Almost surely, 21230255111 is an apocalyptic number.

1230255111 is a deficient number, since it is larger than the sum of its proper divisors (496418809).

1230255111 is a wasteful number, since it uses less digits than its factorization.

1230255111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21583445.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1230255111 is about 35074.9926728431. The cubic root of 1230255111 is about 1071.5153394899.

Adding to 1230255111 its reverse (1115520321), we get a palindrome (2345775432).

The spelling of 1230255111 in words is "one billion, two hundred thirty million, two hundred fifty-five thousand, one hundred eleven".

Divisors: 1 3 19 57 21583423 64750269 410085037 1230255111