Search a number
-
+
227864980 = 22571627607
BaseRepresentation
bin11011001010011…
…11000110010100
3120212202201222201
431211033012110
5431313134410
634335534244
75434551250
oct1545170624
9525681881
10227864980
11107695372
126438a384
1338292565
1422397260
151501083a
hexd94f194

227864980 has 24 divisors (see below), whose sum is σ = 546876288. Its totient is φ = 78125088.

The previous prime is 227864969. The next prime is 227864983. The reversal of 227864980 is 89468722.

227864980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2278649802 = 103844898220800800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 227864980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227864983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813664 + ... + 813943.

It is an arithmetic number, because the mean of its divisors is an integer number (22786512).

Almost surely, 2227864980 is an apocalyptic number.

227864980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227864980 is an abundant number, since it is smaller than the sum of its proper divisors (319011308).

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

227864980 is a wasteful number, since it uses less digits than its factorization.

227864980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627623 (or 1627621 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 227864980 is about 15095.1972494565. The cubic root of 227864980 is about 610.7908581204.

The spelling of 227864980 in words is "two hundred twenty-seven million, eight hundred sixty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1627607 3255214 6510428 8138035 11393249 16276070 22786498 32552140 45572996 56966245 113932490 227864980