Search a number
-
+
40102671 = 371909651
BaseRepresentation
bin1001100011111…
…0101100001111
32210110102112010
42120332230033
540231241141
63551312303
7664603260
oct230765417
983412463
1040102671
1120700804
121151b693
1384014bb
14547c967
1537c2416
hex263eb0f

40102671 has 8 divisors (see below), whose sum is σ = 61108864. Its totient is φ = 22915800.

The previous prime is 40102661. The next prime is 40102687. The reversal of 40102671 is 17620104.

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

It is not a de Polignac number, because 40102671 - 211 = 40100623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1909651 = 40102671 / (4 + 0 + 1 + 0 + 2 + 6 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40102631) 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, 954805 + ... + 954846.

It is an arithmetic number, because the mean of its divisors is an integer number (7638608).

Almost surely, 240102671 is an apocalyptic number.

40102671 is a deficient number, since it is larger than the sum of its proper divisors (21006193).

40102671 is a wasteful number, since it uses less digits than its factorization.

40102671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909661.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 40102671 is about 6332.6669737165. Note that the first 3 decimals coincide. The cubic root of 40102671 is about 342.2875475726.

Adding to 40102671 its reverse (17620104), we get a palindrome (57722775).

The spelling of 40102671 in words is "forty million, one hundred two thousand, six hundred seventy-one".

Divisors: 1 3 7 21 1909651 5728953 13367557 40102671