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40223415 = 352681561
BaseRepresentation
bin1001100101110…
…0001010110111
32210200120011010
42121130022313
540244122130
63554043303
7665615301
oct231341267
983616133
1040223415
11207834a1
1211579533
13844444b
1454b0971
1537e80b0
hex265c2b7

40223415 has 8 divisors (see below), whose sum is σ = 64357488. Its totient is φ = 21452480.

The previous prime is 40223413. The next prime is 40223423. The reversal of 40223415 is 51432204.

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

It is not a de Polignac number, because 40223415 - 21 = 40223413 is a prime.

It is a super-2 number, since 2×402234152 = 3235846228524450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40223391 and 40223400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40223413) 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, 1340766 + ... + 1340795.

It is an arithmetic number, because the mean of its divisors is an integer number (8044686).

Almost surely, 240223415 is an apocalyptic number.

40223415 is a deficient number, since it is larger than the sum of its proper divisors (24134073).

40223415 is a wasteful number, since it uses less digits than its factorization.

40223415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681569.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40223415 is about 6342.1932326286. The cubic root of 40223415 is about 342.6307313466.

Adding to 40223415 its reverse (51432204), we get a palindrome (91655619).

The spelling of 40223415 in words is "forty million, two hundred twenty-three thousand, four hundred fifteen".

Divisors: 1 3 5 15 2681561 8044683 13407805 40223415