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227446540 = 22523503983
BaseRepresentation
bin11011000111010…
…00111100001100
3120211222110222221
431203220330030
5431211242130
634322545124
75431156306
oct1543507414
9524873887
10227446540
11107429a52
12642081a4
1338176c69
14222c8976
1514e7b87a
hexd8e8f0c

227446540 has 48 divisors (see below), whose sum is σ = 499903488. Its totient is φ = 86761664.

The previous prime is 227446493. The next prime is 227446543. The reversal of 227446540 is 45644722.

227446540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 227446496 and 227446505.

It is not an unprimeable number, because it can be changed into a prime (227446543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230889 + ... + 231871.

It is an arithmetic number, because the mean of its divisors is an integer number (10414656).

Almost surely, 2227446540 is an apocalyptic number.

227446540 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 227446540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249951744).

227446540 is an abundant number, since it is smaller than the sum of its proper divisors (272456948).

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

227446540 is a wasteful number, since it uses less digits than its factorization.

227446540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The square root of 227446540 is about 15081.3308431318. The cubic root of 227446540 is about 610.4167536385.

The spelling of 227446540 in words is "two hundred twenty-seven million, four hundred forty-six thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 503 983 1006 1966 2012 2515 3932 4915 5030 9830 10060 11569 19660 22609 23138 45218 46276 57845 90436 113045 115690 226090 231380 452180 494449 988898 1977796 2472245 4944490 9888980 11372327 22744654 45489308 56861635 113723270 227446540