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123304030 = 2547262349
BaseRepresentation
bin1110101100101…
…11100001011110
322121000111022221
413112113201132
5223031212110
620122455554
73025031653
oct726274136
9277014287
10123304030
1163669163
12353645ba
131c712a85
1412539c2a
15ac597da
hex759785e

123304030 has 16 divisors (see below), whose sum is σ = 226670400. Its totient is φ = 48272032.

The previous prime is 123304003. The next prime is 123304037. The reversal of 123304030 is 30403321.

It is a junction number, because it is equal to n+sod(n) for n = 123303995 and 123304013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123304037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130705 + ... + 131644.

It is an arithmetic number, because the mean of its divisors is an integer number (14166900).

Almost surely, 2123304030 is an apocalyptic number.

123304030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123304030 is a deficient number, since it is larger than the sum of its proper divisors (103366370).

123304030 is a wasteful number, since it uses less digits than its factorization.

123304030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262403.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 123304030 is about 11104.2347777774. The cubic root of 123304030 is about 497.7284019806.

Adding to 123304030 its reverse (30403321), we get a palindrome (153707351).

The spelling of 123304030 in words is "one hundred twenty-three million, three hundred four thousand, thirty".

Divisors: 1 2 5 10 47 94 235 470 262349 524698 1311745 2623490 12330403 24660806 61652015 123304030