Search a number
-
+
28629190 = 2517832029
BaseRepresentation
bin110110100110…
…1100011000110
31222212111212101
41231031203012
524312113230
62501342314
7465226012
oct155154306
958774771
1028629190
1115184597
12970799a
135c15065
143b33542
1527a7aca
hex1b4d8c6

28629190 has 32 divisors (see below), whose sum is σ = 55248480. Its totient is φ = 10642944.

The previous prime is 28629187. The next prime is 28629199. The reversal of 28629190 is 9192682.

It is a super-2 number, since 2×286291902 = 1639261040112200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28629199) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13096 + ... + 15124.

It is an arithmetic number, because the mean of its divisors is an integer number (1726515).

Almost surely, 228629190 is an apocalyptic number.

28629190 is a deficient number, since it is larger than the sum of its proper divisors (26619290).

28629190 is a wasteful number, since it uses less digits than its factorization.

28629190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 28629190 is about 5350.6251971148. The cubic root of 28629190 is about 305.9165834111.

The spelling of 28629190 in words is "twenty-eight million, six hundred twenty-nine thousand, one hundred ninety".

Divisors: 1 2 5 10 17 34 83 85 166 170 415 830 1411 2029 2822 4058 7055 10145 14110 20290 34493 68986 168407 172465 336814 344930 842035 1684070 2862919 5725838 14314595 28629190