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40151413 = 389103217
BaseRepresentation
bin1001100100101…
…0100101110101
32210112220101101
42121022211311
540234321123
63552330101
7665165341
oct231124565
983486341
1040151413
1120734395
1211543931
13841a743
145492621
1537d1aad
hex264a975

40151413 has 4 divisors (see below), whose sum is σ = 40255020. Its totient is φ = 40047808.

The previous prime is 40151407. The next prime is 40151453. The reversal of 40151413 is 31415104.

40151413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4235364 + 35916049 = 2058^2 + 5993^2 .

It is a cyclic number.

It is not a de Polignac number, because 40151413 - 25 = 40151381 is a prime.

It is a super-2 number, since 2×401514132 = 3224271931793138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40151453) 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 3 ways as a sum of consecutive naturals, for example, 51220 + ... + 51997.

It is an arithmetic number, because the mean of its divisors is an integer number (10063755).

Almost surely, 240151413 is an apocalyptic number.

It is an amenable number.

40151413 is a deficient number, since it is larger than the sum of its proper divisors (103607).

40151413 is a wasteful number, since it uses less digits than its factorization.

40151413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103606.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40151413 is about 6336.5142625895. The cubic root of 40151413 is about 342.4261669751.

Adding to 40151413 its reverse (31415104), we get a palindrome (71566517).

The spelling of 40151413 in words is "forty million, one hundred fifty-one thousand, four hundred thirteen".

Divisors: 1 389 103217 40151413