Search a number
-
+
28770410 = 2514919309
BaseRepresentation
bin110110111000…
…0000001101010
32000010200120202
41231300001222
524331123120
62504352202
7466354514
oct155600152
960120522
1028770410
11152706a9
129775662
135c64416
143b6cbb4
1527d4875
hex1b7006a

28770410 has 16 divisors (see below), whose sum is σ = 52137000. Its totient is φ = 11430336.

The previous prime is 28770383. The next prime is 28770421. The reversal of 28770410 is 1407782.

It can be written as a sum of positive squares in 4 ways, for example, as 11539609 + 17230801 = 3397^2 + 4151^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8165 + ... + 11144.

Almost surely, 228770410 is an apocalyptic number.

28770410 is a deficient number, since it is larger than the sum of its proper divisors (23366590).

28770410 is a wasteful number, since it uses less digits than its factorization.

28770410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19465.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 28770410 is about 5363.8055520311. The cubic root of 28770410 is about 306.4187596878.

The spelling of 28770410 in words is "twenty-eight million, seven hundred seventy thousand, four hundred ten".

Divisors: 1 2 5 10 149 298 745 1490 19309 38618 96545 193090 2877041 5754082 14385205 28770410