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227204020 = 22511360201
BaseRepresentation
bin11011000101011…
…01101110110100
3120211112011022201
431202231232310
5431131012040
634313434244
75426126251
oct1542555664
9524464281
10227204020
1110728381a
126410b984
13380c0764
1422264428
1514e2ea9a
hexd8adbb4

227204020 has 12 divisors (see below), whose sum is σ = 477128484. Its totient is φ = 90881600.

The previous prime is 227203981. The next prime is 227204041. The reversal of 227204020 is 20402722.

It can be written as a sum of positive squares in 2 ways, for example, as 159668496 + 67535524 = 12636^2 + 8218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5680081 + ... + 5680120.

It is an arithmetic number, because the mean of its divisors is an integer number (39760707).

Almost surely, 2227204020 is an apocalyptic number.

227204020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227204020 is an abundant number, since it is smaller than the sum of its proper divisors (249924464).

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

227204020 is a wasteful number, since it uses less digits than its factorization.

227204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11360210 (or 11360208 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 227204020 is about 15073.2882941978. The cubic root of 227204020 is about 610.1997196069.

Adding to 227204020 its reverse (20402722), we get a palindrome (247606742).

The spelling of 227204020 in words is "two hundred twenty-seven million, two hundred four thousand, twenty".

Divisors: 1 2 4 5 10 20 11360201 22720402 45440804 56801005 113602010 227204020