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40214213 = 1329106669
BaseRepresentation
bin1001100101100…
…1111011000101
32210200002112022
42121121323011
540243323323
63553532525
7665546414
oct231317305
983602468
1040214213
1120777596
1211574145
1384401c0
1454ab47b
1537e54c8
hex2659ec5

40214213 has 8 divisors (see below), whose sum is σ = 44801400. Its totient is φ = 35840448.

The previous prime is 40214173. The next prime is 40214233. The reversal of 40214213 is 31241204.

It can be written as a sum of positive squares in 4 ways, for example, as 56644 + 40157569 = 238^2 + 6337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40214213 - 26 = 40214149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40214191 and 40214200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40214233) 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, 52958 + ... + 53711.

It is an arithmetic number, because the mean of its divisors is an integer number (5600175).

Almost surely, 240214213 is an apocalyptic number.

It is an amenable number.

40214213 is a deficient number, since it is larger than the sum of its proper divisors (4587187).

40214213 is a wasteful number, since it uses less digits than its factorization.

40214213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106711.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40214213 is about 6341.4677323156. The cubic root of 40214213 is about 342.6046012227.

Adding to 40214213 its reverse (31241204), we get a palindrome (71455417).

The spelling of 40214213 in words is "forty million, two hundred fourteen thousand, two hundred thirteen".

Divisors: 1 13 29 377 106669 1386697 3093401 40214213