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1230143244 = 2231115161717
BaseRepresentation
bin100100101010010…
…0111111100001100
310011201201202021220
41021110213330030
510004404040434
6322022123340
742325021311
oct11124477414
93151652256
101230143244
11581424910
122a3b80550
13167b19715
14b9538d08
1572ee1d49
hex49527f0c

1230143244 has 48 divisors (see below), whose sum is σ = 3152061696. Its totient is φ = 370296000.

The previous prime is 1230143237. The next prime is 1230143279. The reversal of 1230143244 is 4423410321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10927 + ... + 50790.

It is an arithmetic number, because the mean of its divisors is an integer number (65667952).

Almost surely, 21230143244 is an apocalyptic number.

It is an amenable number.

1230143244 is an abundant number, since it is smaller than the sum of its proper divisors (1921918452).

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

1230143244 is a wasteful number, since it uses less digits than its factorization.

1230143244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61886 (or 61884 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1230143244 is about 35073.3979534347. The cubic root of 1230143244 is about 1071.4828609037.

Adding to 1230143244 its reverse (4423410321), we get a palindrome (5653553565).

The spelling of 1230143244 in words is "one billion, two hundred thirty million, one hundred forty-three thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 151 302 453 604 906 1661 1812 3322 4983 6644 9966 19932 61717 123434 185151 246868 370302 678887 740604 1357774 2036661 2715548 4073322 8146644 9319267 18638534 27957801 37277068 55915602 102511937 111831204 205023874 307535811 410047748 615071622 1230143244