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41212040 = 2351013
BaseRepresentation
bin1001110100110…
…1100010001000
32212112210021212
42131031202020
541022241130
64031152252
71010203502
oct235154210
985483255
1041212040
1121299241
1211975688
1386cc42c
14568ad72
153940e95
hex274d888

41212040 has 32 divisors (see below), whose sum is σ = 93654360. Its totient is φ = 16321600.

The previous prime is 41212037. The next prime is 41212049. The reversal of 41212040 is 4021214.

It can be written as a sum of positive squares in 4 ways, for example, as 41190724 + 21316 = 6418^2 + 146^2 .

It is not an unprimeable number, because it can be changed into a prime (41212049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407990 + ... + 408090.

Almost surely, 241212040 is an apocalyptic number.

41212040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41212040 is an abundant number, since it is smaller than the sum of its proper divisors (52442320).

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

41212040 is an frugal number, since it uses more digits than its factorization.

41212040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 41212040 is about 6419.6604271566. The cubic root of 41212040 is about 345.4151412287.

Adding to 41212040 its reverse (4021214), we get a palindrome (45233254).

The spelling of 41212040 in words is "forty-one million, two hundred twelve thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 101 202 404 505 808 1010 2020 4040 10201 20402 40804 51005 81608 102010 204020 408040 1030301 2060602 4121204 5151505 8242408 10303010 20606020 41212040