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40870361 = 72859971
BaseRepresentation
bin1001101111101…
…0000111011001
32211220102121002
42123322013121
540430322421
64015554345
71004251400
oct233720731
984812532
1040870361
1121085564
121182b9b5
13860ca5c
1455dc637
1538c4b0b
hex26fa1d9

40870361 has 12 divisors (see below), whose sum is σ = 47647440. Its totient is φ = 34954920.

The previous prime is 40870351. The next prime is 40870373. The reversal of 40870361 is 16307804.

It is not a de Polignac number, because 40870361 - 210 = 40869337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40870331) 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, 41606 + ... + 42576.

It is an arithmetic number, because the mean of its divisors is an integer number (3970620).

Almost surely, 240870361 is an apocalyptic number.

It is an amenable number.

40870361 is a deficient number, since it is larger than the sum of its proper divisors (6777079).

40870361 is an equidigital number, since it uses as much as digits as its factorization.

40870361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40870361 is about 6392.9931174685. The cubic root of 40870361 is about 344.4579066269.

The spelling of 40870361 in words is "forty million, eight hundred seventy thousand, three hundred sixty-one".

Divisors: 1 7 49 859 971 6013 6797 42091 47579 834089 5838623 40870361