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16423030 = 25131961109
BaseRepresentation
bin111110101001…
…100001110110
31010220101011101
4332221201312
513201014110
61344000314
7256410361
oct76514166
933811141
1016423030
1192a7958
12560009a
133530290
1422770d8
15169613a
hexfa9876

16423030 has 64 divisors (see below), whose sum is σ = 34372800. Its totient is φ = 5598720.

The previous prime is 16423027. The next prime is 16423031. The reversal of 16423030 is 3032461.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16422989 and 16423007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16423031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150616 + ... + 150724.

It is an arithmetic number, because the mean of its divisors is an integer number (537075).

Almost surely, 216423030 is an apocalyptic number.

16423030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16423030 is an abundant number, since it is smaller than the sum of its proper divisors (17949770).

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

16423030 is a wasteful number, since it uses less digits than its factorization.

16423030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 16423030 is about 4052.5337753065. The cubic root of 16423030 is about 254.1856889224.

Adding to 16423030 its reverse (3032461), we get a palindrome (19455491).

The spelling of 16423030 in words is "sixteen million, four hundred twenty-three thousand, thirty".

Divisors: 1 2 5 10 13 19 26 38 61 65 95 109 122 130 190 218 247 305 494 545 610 793 1090 1159 1235 1417 1586 2071 2318 2470 2834 3965 4142 5795 6649 7085 7930 10355 11590 13298 14170 15067 20710 26923 30134 33245 53846 66490 75335 86437 126331 134615 150670 172874 252662 269230 432185 631655 864370 1263310 1642303 3284606 8211515 16423030