Search a number
-
+
16125830 = 257230369
BaseRepresentation
bin111101100000…
…111110000110
31010100021110222
4331200332012
513112011310
61333344342
7254032040
oct75407606
933307428
1016125830
119114636
1254980b2
133457c16
1421daa90
151638055
hexf60f86

16125830 has 16 divisors (see below), whose sum is σ = 33173280. Its totient is φ = 5528832.

The previous prime is 16125803. The next prime is 16125869. The reversal of 16125830 is 3852161.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 16125830.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115115 + ... + 115254.

It is an arithmetic number, because the mean of its divisors is an integer number (2073330).

Almost surely, 216125830 is an apocalyptic number.

16125830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16125830 is an abundant number, since it is smaller than the sum of its proper divisors (17047450).

16125830 is a wasteful number, since it uses less digits than its factorization.

16125830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230383.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 16125830 is about 4015.6979468083. The cubic root of 16125830 is about 252.6430519659.

Adding to 16125830 its reverse (3852161), we get a palindrome (19977991).

The spelling of 16125830 in words is "sixteen million, one hundred twenty-five thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 230369 460738 1151845 1612583 2303690 3225166 8062915 16125830