Search a number
-
+
27268880 = 245437927
BaseRepresentation
bin110100000000…
…1011100010000
31220022101212112
41220001130100
523440101010
62412244452
7450532052
oct150013420
956271775
1027268880
1114435571
129170728
135859b42
14389b8d2
1525d9a05
hex1a01710

27268880 has 40 divisors (see below), whose sum is σ = 64882752. Its totient is φ = 10652544.

The previous prime is 27268877. The next prime is 27268907. The reversal of 27268880 is 8886272.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524 + ... + 7403.

Almost surely, 227268880 is an apocalyptic number.

27268880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27268880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32441376).

27268880 is an abundant number, since it is smaller than the sum of its proper divisors (37613872).

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

27268880 is a wasteful number, since it uses less digits than its factorization.

27268880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7983 (or 7977 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 27268880 is about 5221.9613173596. The cubic root of 27268880 is about 300.9925642840.

The spelling of 27268880 in words is "twenty-seven million, two hundred sixty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 43 80 86 172 215 344 430 688 860 1720 3440 7927 15854 31708 39635 63416 79270 126832 158540 317080 340861 634160 681722 1363444 1704305 2726888 3408610 5453776 6817220 13634440 27268880