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40060215 = 3251331472
BaseRepresentation
bin1001100011010…
…0010100110111
32210101021021200
42120310110313
540223411330
63550343543
7664335426
oct230642467
983337250
1040060215
1120681918
12114babb3
1383b8090
14546b2bd
1537b4a60
hex2634537

40060215 has 72 divisors (see below), whose sum is σ = 78868608. Its totient is φ = 18679680.

The previous prime is 40060213. The next prime is 40060247. The reversal of 40060215 is 51206004.

It is a happy number.

40060215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40060215 - 21 = 40060213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40060213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 852322 + ... + 852368.

Almost surely, 240060215 is an apocalyptic number.

40060215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40060215 is a deficient number, since it is larger than the sum of its proper divisors (38808393).

40060215 is a wasteful number, since it uses less digits than its factorization.

40060215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40060215 is about 6329.3139438647. The cubic root of 40060215 is about 342.1667136307.

Adding to 40060215 its reverse (51206004), we get a palindrome (91266219).

The spelling of 40060215 in words is "forty million, sixty thousand, two hundred fifteen".

Divisors: 1 3 5 9 13 15 31 39 45 47 65 93 117 141 155 195 235 279 403 423 465 585 611 705 1209 1395 1457 1833 2015 2115 2209 3055 3627 4371 5499 6045 6627 7285 9165 11045 13113 18135 18941 19881 21855 27495 28717 33135 56823 65565 68479 86151 94705 99405 143585 170469 205437 258453 284115 342395 430755 616311 852345 890227 1027185 1292265 2670681 3081555 4451135 8012043 13353405 40060215