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103123030 = 25234310427
BaseRepresentation
bin1100010010110…
…00100001010110
321012001012012111
412021120201112
5202344414110
614122141234
72361350143
oct611304126
9235035174
10103123030
115323494a
122a65181a
131849815a
14d9a53ca
1590bee8a
hex6258856

103123030 has 32 divisors (see below), whose sum is σ = 198215424. Its totient is φ = 38534496.

The previous prime is 103122997. The next prime is 103123039. The reversal of 103123030 is 30321301.

It is a self number, because there is not a number n which added to its sum of digits gives 103123030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103123039) 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, 4677 + ... + 15103.

It is an arithmetic number, because the mean of its divisors is an integer number (6194232).

Almost surely, 2103123030 is an apocalyptic number.

103123030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103123030 is a deficient number, since it is larger than the sum of its proper divisors (95092394).

103123030 is a wasteful number, since it uses less digits than its factorization.

103123030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 103123030 is about 10154.9510092368. The cubic root of 103123030 is about 468.9413777366.

Adding to 103123030 its reverse (30321301), we get a palindrome (133444331).

The spelling of 103123030 in words is "one hundred three million, one hundred twenty-three thousand, thirty".

Divisors: 1 2 5 10 23 43 46 86 115 215 230 430 989 1978 4945 9890 10427 20854 52135 104270 239821 448361 479642 896722 1199105 2241805 2398210 4483610 10312303 20624606 51561515 103123030