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40107513 = 321163361
BaseRepresentation
bin1001100011111…
…1110111111001
32210110200011110
42120333313321
540231420023
63551350533
7664623345
oct230776771
983420143
1040107513
1120704406
1211522449
138403774
145480625
1537c3a93
hex263fdf9

40107513 has 8 divisors (see below), whose sum is σ = 53730976. Its totient is φ = 26611200.

The previous prime is 40107503. The next prime is 40107527. The reversal of 40107513 is 31570104.

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

It is not a de Polignac number, because 40107513 - 26 = 40107449 is a prime.

It is a super-2 number, since 2×401075132 = 3217225198090338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40107513.

It is not an unprimeable number, because it can be changed into a prime (40107503) 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, 31048 + ... + 32313.

It is an arithmetic number, because the mean of its divisors is an integer number (6716372).

Almost surely, 240107513 is an apocalyptic number.

It is an amenable number.

40107513 is a deficient number, since it is larger than the sum of its proper divisors (13623463).

40107513 is a wasteful number, since it uses less digits than its factorization.

40107513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63575.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 40107513 is about 6333.0492655592. The cubic root of 40107513 is about 342.3013229610.

Adding to 40107513 its reverse (31570104), we get a palindrome (71677617).

The spelling of 40107513 in words is "forty million, one hundred seven thousand, five hundred thirteen".

Divisors: 1 3 211 633 63361 190083 13369171 40107513