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40227210 = 2325446969
BaseRepresentation
bin1001100101110…
…1000110001010
32210200202100200
42121131012022
540244232320
63554113030
7665632332
oct231350612
983622320
1040227210
1120786331
121157b776
1384460aa
1454b20c2
1537e9290
hex265d18a

40227210 has 24 divisors (see below), whose sum is σ = 104590980. Its totient is φ = 10727232.

The previous prime is 40227197. The next prime is 40227211. The reversal of 40227210 is 1272204.

It can be written as a sum of positive squares in 2 ways, for example, as 38975049 + 1252161 = 6243^2 + 1119^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40227211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223395 + ... + 223574.

Almost surely, 240227210 is an apocalyptic number.

40227210 is an abundant number, since it is smaller than the sum of its proper divisors (64363770).

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

40227210 is a wasteful number, since it uses less digits than its factorization.

40227210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446982 (or 446979 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 40227210 is about 6342.4924122935. The cubic root of 40227210 is about 342.6415065194.

Adding to 40227210 its reverse (1272204), we get a palindrome (41499414).

The spelling of 40227210 in words is "forty million, two hundred twenty-seven thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 446969 893938 1340907 2234845 2681814 4022721 4469690 6704535 8045442 13409070 20113605 40227210