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40133031 = 353252409
BaseRepresentation
bin1001100100011…
…0000110100111
32210111222011120
42121012012213
540233224111
63552105023
7665060631
oct231060647
983458146
1040133031
11207215a4
1211535173
138412273
145489a51
1537cb406
hex26461a7

40133031 has 8 divisors (see below), whose sum is σ = 54520560. Its totient is φ = 26250432.

The previous prime is 40133021. The next prime is 40133033. The reversal of 40133031 is 13033104.

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

It is not a de Polignac number, because 40133031 - 210 = 40132007 is a prime.

It is a super-2 number, since 2×401330312 = 3221320354493922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40133031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40133033) 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, 126046 + ... + 126363.

It is an arithmetic number, because the mean of its divisors is an integer number (6815070).

Almost surely, 240133031 is an apocalyptic number.

40133031 is a deficient number, since it is larger than the sum of its proper divisors (14387529).

40133031 is a wasteful number, since it uses less digits than its factorization.

40133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252465.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 40133031 is about 6335.0636145188. The cubic root of 40133031 is about 342.3739028234.

Adding to 40133031 its reverse (13033104), we get a palindrome (53166135).

The spelling of 40133031 in words is "forty million, one hundred thirty-three thousand, thirty-one".

Divisors: 1 3 53 159 252409 757227 13377677 40133031