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1230001043 = 19312088287
BaseRepresentation
bin100100101010000…
…0101001110010011
310011201110112020012
41021110011032103
510004340013133
6322015105135
742323556605
oct11124051623
93151415205
101230001043
11581337a97
122a3b121ab
13167a99a8b
14b94dd175
1572eb4b48
hex49505393

1230001043 has 8 divisors (see below), whose sum is σ = 1336504320. Its totient is φ = 1127674440.

The previous prime is 1230001039. The next prime is 1230001057. The reversal of 1230001043 is 3401000321.

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 1230001043 - 22 = 1230001039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230001033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1043555 + ... + 1044732.

It is an arithmetic number, because the mean of its divisors is an integer number (167063040).

Almost surely, 21230001043 is an apocalyptic number.

1230001043 is a deficient number, since it is larger than the sum of its proper divisors (106503277).

1230001043 is a wasteful number, since it uses less digits than its factorization.

1230001043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088337.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1230001043 is about 35071.3707031818. The cubic root of 1230001043 is about 1071.4415725398.

Adding to 1230001043 its reverse (3401000321), we get a palindrome (4631001364).

The spelling of 1230001043 in words is "one billion, two hundred thirty million, one thousand, forty-three".

Divisors: 1 19 31 589 2088287 39677453 64736897 1230001043