Search a number
-
+
27908032 = 264310141
BaseRepresentation
bin110101001110…
…1011111000000
31221111212121211
41222131133000
524121024112
62434055504
7456133345
oct152353700
957455554
1027908032
1114831799
12941a594
135a21a39
1439c67cc
1526b40a7
hex1a9d7c0

27908032 has 28 divisors (see below), whose sum is σ = 56673496. Its totient is φ = 13628160.

The previous prime is 27908021. The next prime is 27908047. The reversal of 27908032 is 23080972.

It is a super-2 number, since 2×279080322 = 1557716500226048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27907985 and 27908003.

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 3 ways as a sum of consecutive naturals, for example, 2319 + ... + 7822.

Almost surely, 227908032 is an apocalyptic number.

It is an amenable number.

27908032 is an abundant number, since it is smaller than the sum of its proper divisors (28765464).

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

27908032 is a wasteful number, since it uses less digits than its factorization.

27908032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196 (or 10186 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 27908032 is about 5282.8053153604. The cubic root of 27908032 is about 303.3260694097.

The spelling of 27908032 in words is "twenty-seven million, nine hundred eight thousand, thirty-two".

Divisors: 1 2 4 8 16 32 43 64 86 172 344 688 1376 2752 10141 20282 40564 81128 162256 324512 436063 649024 872126 1744252 3488504 6977008 13954016 27908032