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1230000231 = 31279320563
BaseRepresentation
bin100100101010000…
…0101000001100111
310011201110111010010
41021110011001213
510004340001411
6322015101303
742323554335
oct11124050147
93151414103
101230000231
11581337419
122a3b11833
13167a995b5
14b94dcb55
1572eb47a6
hex49505067

1230000231 has 8 divisors (see below), whose sum is σ = 1641287680. Its totient is φ = 819356472.

The previous prime is 1230000227. The next prime is 1230000253. The reversal of 1230000231 is 1320000321.

It is a happy number.

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

It is not a de Polignac number, because 1230000231 - 22 = 1230000227 is a prime.

It is a super-2 number, since 2×12300002312 = 3025801136520106722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230000931) 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, 156445 + ... + 164118.

It is an arithmetic number, because the mean of its divisors is an integer number (205160960).

Almost surely, 21230000231 is an apocalyptic number.

1230000231 is a deficient number, since it is larger than the sum of its proper divisors (411287449).

1230000231 is a wasteful number, since it uses less digits than its factorization.

1230000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321845.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1230000231 is about 35071.3591267861. The cubic root of 1230000231 is about 1071.4413367647.

Adding to 1230000231 its reverse (1320000321), we get a palindrome (2550000552).

The spelling of 1230000231 in words is "one billion, two hundred thirty million, two hundred thirty-one", and thus it is an aban number.

Divisors: 1 3 1279 3837 320563 961689 410000077 1230000231