Search a number
-
+
27790968 = 2336131889
BaseRepresentation
bin110101000000…
…0111001111000
31221021221001010
41222000321320
524103302333
62431353520
7455135142
oct152007170
957257033
1027790968
1114761847
1293828a0
1359b067a
143995c92
15268e563
hex1a80e78

27790968 has 32 divisors (see below), whose sum is σ = 69627600. Its totient is φ = 9243648.

The previous prime is 27790963. The next prime is 27790979. The reversal of 27790968 is 86909772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27790963) by changing a digit.

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, 13768 + ... + 15656.

Almost surely, 227790968 is an apocalyptic number.

It is an amenable number.

27790968 is an abundant number, since it is smaller than the sum of its proper divisors (41836632).

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

27790968 is a wasteful number, since it uses less digits than its factorization.

27790968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 27790968 is about 5271.7139527861. The cubic root of 27790968 is about 302.9013610020.

The spelling of 27790968 in words is "twenty-seven million, seven hundred ninety thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 613 1226 1839 1889 2452 3678 3778 4904 5667 7356 7556 11334 14712 15112 22668 45336 1157957 2315914 3473871 4631828 6947742 9263656 13895484 27790968