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1230111030 = 23596742403
BaseRepresentation
bin100100101010010…
…0000000100110110
310011201200010002210
41021110200010312
510004402023110
6322021314250
742324525351
oct11124400466
93151603083
101230111030
11581402695
122a3b65986
13167b07b65
14b952b298
1572ed7520
hex49520136

1230111030 has 32 divisors (see below), whose sum is σ = 2955389184. Its totient is φ = 327682656.

The previous prime is 1230111023. The next prime is 1230111037. The reversal of 1230111030 is 301110321.

It is an interprime number because it is at equal distance from previous prime (1230111023) and next prime (1230111037).

It is a super-2 number, since 2×12301110302 = 3026346292255321800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1230110997 and 1230111015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230111037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7809 + ... + 50211.

It is an arithmetic number, because the mean of its divisors is an integer number (92355912).

Almost surely, 21230111030 is an apocalyptic number.

1230111030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230111030 is an abundant number, since it is smaller than the sum of its proper divisors (1725278154).

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

1230111030 is a wasteful number, since it uses less digits than its factorization.

1230111030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43380.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1230111030 is about 35072.9387134868. The cubic root of 1230111030 is about 1071.4735077788.

Adding to 1230111030 its reverse (301110321), we get a palindrome (1531221351).

The spelling of 1230111030 in words is "one billion, two hundred thirty million, one hundred eleven thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 967 1934 2901 4835 5802 9670 14505 29010 42403 84806 127209 212015 254418 424030 636045 1272090 41003701 82007402 123011103 205018505 246022206 410037010 615055515 1230111030