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40135743 = 34618123
BaseRepresentation
bin1001100100011…
…0110000111111
32210112002220000
42121012300333
540233320433
63552125343
7665101554
oct231066077
983462800
1040135743
112072363a
1211536853
13841357b
14548aa2b
1537cc113
hex2646c3f

40135743 has 20 divisors (see below), whose sum is σ = 60946248. Its totient is φ = 26315280.

The previous prime is 40135741. The next prime is 40135769. The reversal of 40135743 is 34753104.

It is not a de Polignac number, because 40135743 - 21 = 40135741 is a prime.

It is a super-2 number, since 2×401357432 = 3221755732324098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40135741) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 880 + ... + 9002.

Almost surely, 240135743 is an apocalyptic number.

40135743 is a deficient number, since it is larger than the sum of its proper divisors (20810505).

40135743 is an equidigital number, since it uses as much as digits as its factorization.

40135743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8196 (or 8187 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 40135743 is about 6335.2776576879. The cubic root of 40135743 is about 342.3816146515.

Adding to 40135743 its reverse (34753104), we get a palindrome (74888847).

The spelling of 40135743 in words is "forty million, one hundred thirty-five thousand, seven hundred forty-three".

Divisors: 1 3 9 27 61 81 183 549 1647 4941 8123 24369 73107 219321 495503 657963 1486509 4459527 13378581 40135743