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1230030012 = 223294186209
BaseRepresentation
bin100100101010000…
…1100010010111100
310011201111222222010
41021110030102330
510004341430022
6322015451220
742324040221
oct11124142274
93151458863
101230030012
11581357832
122a3b26b10
13167aaa013
14b9509948
1572ebd50c
hex4950c4bc

1230030012 has 48 divisors (see below), whose sum is σ = 3041488800. Its totient is φ = 386211840.

The previous prime is 1230030001. The next prime is 1230030073. The reversal of 1230030012 is 2100300321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1230030012.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28837 + ... + 57372.

It is an arithmetic number, because the mean of its divisors is an integer number (63364350).

Almost surely, 21230030012 is an apocalyptic number.

1230030012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230030012 is an abundant number, since it is smaller than the sum of its proper divisors (1811458788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230030012 is a wasteful number, since it uses less digits than its factorization.

1230030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86286 (or 86284 counting only the distinct ones).

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

The square root of 1230030012 is about 35071.7837014316. The cubic root of 1230030012 is about 1071.4499840089.

Adding to 1230030012 its reverse (2100300321), we get a palindrome (3330330333).

The spelling of 1230030012 in words is "one billion, two hundred thirty million, thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 29 41 58 82 87 116 123 164 174 246 348 492 1189 2378 3567 4756 7134 14268 86209 172418 258627 344836 517254 1034508 2500061 3534569 5000122 7069138 7500183 10000244 10603707 14138276 15000366 21207414 30000732 42414828 102502501 205005002 307507503 410010004 615015006 1230030012